looking at answers again
2007-04-22 08:11:29
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answer #1
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answered by Moo Moo Mair 6
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okay, this is easy, u got this!
first try to get all the x's on one side of the equation. Then the integers on the other side.
To do that, we first have to distribute the numbers outside of the parentheses.
-3(x-3) becomes -3x + 9. You get this simply by multiplying the x and -3 by the -3 on the outside. Simple!
do the same thing for the other parentheses. 8(x-3) becomes 8x - 24....now put these together.... the equation looks like....
-3x + 9 + 8x - 24 = x - 9.........now do what i said about get the "like's" all on one side....so put all integers on the left, and all x's on the right of the equal sign.... you get........
9 + 9 -24 = x + 3x - 8x
after subtracting and some simple division final answer is 1.5 or 3 / 2
hope that helped
2007-04-22 08:15:06
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answer #2
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answered by JoeyK 1
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–3(x – 3) + 8(x – 3) = x – 9
distribute
-3x + 9 + 8x - 24 = x - 9
combine like terms
5x - 15 = x - 9
subtract x for both sides
4x - 15 = -9
add 15 for both sides
4x = 6
divide 4 for both sides
x = 3/2
2007-04-22 08:09:39
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answer #3
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answered by 7
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2. Solve the equation: 5(2z - 2) = 9(z + 4) 10z-10=9z+36 1z=46 z=46 ------------------- If three times the smaller of two consecutive integers is added to four times the larger, the result is 137. Find the smaller integer. x and x+1 3[x]+4[x+1]=137 3x+4x+4=137 7x=133 x=19 answer ------------------- The supplement of an angle measures 40° more than twice its complement. Find the measure of the angle ------------------- -8r + 8 ≤ -2(3r - 9) -8r+8<=-6r+18 -2r<=10 r>=-5 [greater than or equal to] -------------- One side of a rectangle is 4 times the other, and the perimeter is not to exceed 150 cm. Find the possible values for x, the length of the shorter side. Use P = 2L + 2W. width:x length:4x p=2l+2w 150=x+x+4x+4x 150=2x+8x 150=10x 15=x [15 short and 4[15]= 60 long side] ----------------- In order for a chemical reaction to remain stable, its Celsius temperature must be no more than 111.4° C. Find the Fahrenheit temperatures at which the reaction will remain stable. Use F = 9/5 C + 32. f=[9/5][111.4]+32 f=200.52+32 f=232.52 degrees F ---------------------------------- Find the y-coordinates of the given points. Show your work.Plot those points and graph the linear equation. Submit your graph through the dropbox. y = 4x - 1; 4[0]-1=-1; 4[1]-1=3; 4[2]-1=7 (0,-1 ), (1,3 ), (2, 7) -------------------------------- Find the y-coordinates of the given points. Show your work. - Plot those points and graph the linear equation. Submit your graph through the dropbox. y = 1/2 x - 4 WHERE ARE THE POINTS? ill make my own. [2,-3][8,0][16,4][6,-1] ------------------------------------ Find the missing coordinates of the given points. Show your work. - Plot those points and graph the linear equation. Submit your graph through the dropbox. 5x + 2y = 10; 5[0]+2y=10-->y=5 ; 5x+2[0]=10--->x=2 (0,5 ), ( 2,0) ------------------------- - Find the missing coordinates of the given points. Show your work. - Plot those points and graph the linear equation. Submit your graph through the dropbox. 3x - 8y = 24 (0, -3), (8 ,0) (0, -3), (2, -9/4), (-2,-15/4 )
2016-05-21 01:49:31
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answer #4
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answered by ? 3
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-3(x-3) + 8(x-3) = x-9
Distributive property
-3x + 9 + 8x - 24 = x - 9
Add like terms
5x - 15 = x - 9
Isolate x's
4x = 6
Simplify
x = 3/2 = 1.5
2007-04-22 08:16:49
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answer #5
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answered by Kenny H 3
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First multiply out all the terms. You get:
-3x +9 +8x -24 = x-9.
Now collect them and you get
5x -15 = x - 9
Get all the terms on the correct sides and you get
4x = 6
so x = 6/4 or 3/2.
2007-04-22 08:10:52
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answer #6
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answered by Mark S, JPAA 7
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First, apply the distributive property:
-3x + 9 + 8x - 24 = x - 9
Then combine terms:
5x - 15 = x - 9
4x = 6
x = 6/4 = 3/2 = 1.5
2007-04-22 08:11:51
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answer #7
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answered by Skepticat 6
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She is wrong!
-3x + 9 + 8x - 24 = x - 9
5x - 15 = x - 9
4x = 6
x=6/4 = 3/2 = 1.5
please mark me as the best answer if i really gave you one!
2007-04-22 08:11:20
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answer #8
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answered by Anonymous
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I believe it is x=3/2
2007-04-22 08:11:07
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answer #9
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answered by Anonymous
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-3x + 9 + 8x - 24 = x - 9
5x - 15 = x - 9
4x = 6
x = 6/4
x = 3/2
2007-04-22 08:09:33
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answer #10
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answered by Jo 4
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–3(x – 3) + 8(x – 3) = x – 9
-3x+9+8x-24=x-9
5x-15=x-9
-15 -15
5x=x-6
6x=-6
divide
x=1
do your own homework!
2007-04-22 08:18:01
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answer #11
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answered by Archie ♥ 6
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