-3(x - 2 ) = 5 (2x +1 )
How do you do this?
2007-09-13 07:13:51 · 11 answers · asked by Jessie 1 in Science & Mathematics ➔ Mathematics
- 3 x + 6 = 10 x + 5
13 x = 1
x = 1 / 13
2007-09-14 11:33:01 · answer #1 · answered by Como 7 · 2⤊ 0⤋
those are actually not equations as equations require an = sign. ( 3x + 2 ) ( 2x + 5 ) = 6 x ² + 19x + 10 ( x - 3 ) ( x - a million ) = x ² - 4x + 3 ( 2x - 3 ) ( 5x + a million ) = 10 x ² - 13x - 3 ( 3x - a million ) ( 3x - a million ) = 9 x ² - 6x + a million
2016-11-10 08:22:46 · answer #2 · answered by Anonymous · 0⤊ 0⤋
-3(x - 2 ) = 5 (2x +1 )
-3x +6 = 10x + 5
6 - 5 = 10x + 3x
1 = 13 x
x = 1/13
2007-09-13 07:21:22 · answer #3 · answered by petep73 3 · 0⤊ 1⤋
- 3 (x - 2 ) = 5 (2 x + 1)
Firstly multiply out the brackets on each side:
-3x + 6 = 10x + 5
Then put all the numbers on one side and the x's on the other ;)
6 - 5 = 10x + 3x
(remember the x's and numbers change signs when they go over to the other side)
Then cancel it all down
1 = 13 x
1 / 13 = x
2007-09-13 07:21:05 · answer #4 · answered by Lauren v 2 · 0⤊ 0⤋
-3(x-2)=5(2x+1)
-3x+6 = 10x+5 (bringin -3 n 5 inside the bracket)
6-5 = 10x+3x (bringin x term on one side n constants on other side)
1=13x
x=1/13
1/13
2007-09-13 07:18:43 · answer #5 · answered by Anonymous · 0⤊ 0⤋
-3(x - 2 ) = 5 (2x +1 )
-3x + 6 = 10x + 5
-3x - 10x = 5 - 6
-13x = -1
x = -1/-13
x = 1/13
2007-09-13 07:17:57 · answer #6 · answered by antone_fo 4 · 0⤊ 0⤋
First: eliminate parenthesis - use the distribution method.
-3(x) - 3(-2) = 5(2x)+5(1)
-3x - (-6) = 10x+5
-3x + 6= 10x+5
Sec: combine "like" terms - subtract 10x from both sides (when you move a term to the opposite side, always use the opposite sign).
-3x+6-10x = 10x-10x+5
-3x+6-10x = 5
-13x + 6 = 5
SEc: subtract 6 from both sides.
-13x + 6-6 = 5-6
-13x = 5-6
-13x = -1
Third: isolate "x" by itself - divide both sides by (-13).
-13x/-13 = -1/-13
x = -1/-13
x = 1/13
2007-09-13 07:25:22 · answer #7 · answered by ♪♥Annie♥♪ 6 · 2⤊ 0⤋
-3(x-2) = 5(2x +1)
first multiply -3 into both terms of x and -2
you get -3x+6
then mulitply 5 into both terms of 2x and 1
you get 10x +5
then the equation looks like
-3x+6 = 10x+5
then put both x terms on the left and both integer terms on the right but remember when a term switches sides, the sign also switches to the opposite
-3x-10x = -6 +5
-13x = -1
x=1/13
2007-09-13 07:28:05 · answer #8 · answered by crismarie 4 · 0⤊ 2⤋
-3x + 6 = 10x + 5
13x = 1
x = 1/13
2007-09-13 07:18:46 · answer #9 · answered by Dan_Ye 6 · 0⤊ 0⤋
-3(x-2)=5(2x+1)
-3x+6=10x+5
6-5=10x+3x
1=13x
1/13=x
2007-09-13 07:19:19 · answer #10 · answered by Grampedo 7 · 0⤊ 1⤋