2006-12-09 04:55:39 · 9 answers · asked by wiswade 1 in Science & Mathematics ➔ Mathematics
(4+3x)(-3)=-9
4+3x = 3
3x = 3-4
x= -1/3 .
2006-12-09 04:58:24 · answer #1 · answered by Anonymous · 4⤊ 0⤋
(4 + 3x)(- 3) = -9
- 12 - 9x = - 9
- 12 - 9x + 12 = - 9 + 12
- 9x = 3
- 9x/9 = 3 /- 9
x = - 1 / 3
The answer is x = - 1 / 3
Insert the x value into the equation
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Check
(4 + 3x)( - 3) = - 9
[4 + 3(- 1/3)] (- 3) = - 9
[4 + (- 3/3)] (- 3) = - 9
[4 -3/3] (- 3) = - 9
[4 - 1](- 3) = - 9
[3](- 3) = - 9
- 9 = - 9
- - - - - -S-
2006-12-09 13:31:28 · answer #2 · answered by SAMUEL D 7 · 1⤊ 0⤋
(4+3x)(-3)=-9 divide both sides by -3
4+3x=3 subtract 4 from each side
3x=-1 divide by 3
x=-1/3
2006-12-09 14:12:27 · answer #3 · answered by yupchagee 7 · 1⤊ 0⤋
first you would add the 4 and -3 because there on the same side so then it would be 1. then take 1 and minus it to itself and -9 so you would get 3x=-10. then you would divide 3x both sides so then you would get x= 3.33333333333333333333333333333333
2006-12-09 13:02:28 · answer #4 · answered by Isti H 3 · 1⤊ 2⤋
aww calculus....id switch for a cal class anytime with my stat class.....
remember always do multiplications and divisions before adding and substracting....this one is an easy one....you can do this...
look first of all you have to multiply 4 by -3....and 3x by -3...so you have -12-9x=-9....then you move the 12 to the right side...so
-9x=12-9
-9x=3
x= 3/-9
x= -1/3
2006-12-09 13:07:24 · answer #5 · answered by Anonymous · 1⤊ 1⤋
(4 + 3x)(-3) = (-9) --- Divide both sides by (-3)...
(4 + 3x) = 3 --- Subtract 4 from each side...
3x = -1 --- Divide both sides by 3...
x = -(1/3)
ANSWER: x = -(1/3)
CHECK: x = -(1/3)
(4 + 3(-(1/3))(-3) = (-9)
(4 - 1)(-3) = (-9)
(3)(-3) = (-9)
(-9) = (-9) --- Answer checks out...
2006-12-09 13:28:23 · answer #6 · answered by Anonymous · 1⤊ 1⤋
-12-9x= -9
-9x=3
x= -1/3
2006-12-10 15:29:07 · answer #7 · answered by ♥KiYa♥ 3 · 0⤊ 0⤋
Do distributive property on the left side
-12-9x=-9
Add both side by 12
-9x=3
divide by -9 both side
x=-3/9
reduce the fraction
x=-1/3
2006-12-09 12:57:53 · answer #8 · answered by lynn 2 · 2⤊ 1⤋
-12-9x=-9
adding12
-9x=3
dividing by -9
x=3/-9
x=-(1/3)
2006-12-09 12:58:29 · answer #9 · answered by raj 7 · 2⤊ 1⤋