-2(16 - 4x) - 8 = 6(x + 2)?

2008-02-12 3:08 pm

回答 (10)

2008-02-12 3:12 pm
✔ 最佳答案
-2(16 - 4x) - 8 = 6(x + 2)
-32 + 8x - 8 = 6x + 12
8x - 40 = 6x + 12
2x - 40 = 12
2x = 52
x = 26
2008-02-16 3:11 am
- 32 + 8x - 8 = 6x + 12
2x = 52
x = 26
2008-02-12 11:20 pm
-32+8x-8=6x+12
-40+8x=6x+12
2x=52
X=26

You have to solve for x, so you simplify
then bring the similar things to the same
side. You bring the x's to the same side.
2008-02-12 11:16 pm
-2(16 - 4x) - 8 = 6(x + 2)
-2*16 + 2*4x - 8 = 6*x + 6*2
-32 + 8x - 8 = 6x + 12
-32 - 8 + 8x = 6x + 12
-40 + 8x = 6x + 12
-6x + 8x = 40 + 12
2x = 52
x = 52/2
x = 26
2008-02-12 11:13 pm
-2(16-4x)-8=6(x+2)
-2(16)+(-2)(-4x)-8=6(x)+6(2)
-32+8x-8=6x+12
-40+8x=6x+12 (now subtract 6x from each side)
-40+2x=12 (then add 40 to each side)
2x=52 (and divide both sides by 2)
x=26
2008-02-12 11:13 pm
-2 ( 16 - 4x ) - 8 = 6 ( x + 2 )
-32 + 8x - 8 = 6x + 12
8x - 6x = 12 + 8 + 32
2x = 52
x = 52 / 2
= 26

hope my answer is correct...
2008-02-12 11:56 pm
-32+8x-8=6x+12
-32-8-12=6x-8x
-52=-2x
x=26
2008-02-12 11:37 pm
first distribute, -2, into (16-4x). Multiply each term by -2.

so it would be (-2 times 16 PLUS 2times 4) It is plus because, two negatives multiplied together is positive.

the left side is -32 + 8x - 8 = multiply the 6 in 6 times x + 6 times 2

on the right side it will be 6x + 12

-32 - 8 = -40 (left side) left side is now, -40 + 8

get the x's together, what you do to one side, do to the other. i minus 6x on the right , minus it from the left, so 8x - 6x = 2x.

so far it is -40 + 2x = 12 add 40 on both sides

2x= 52

divide both sides by 2.

x = 26 Positive about this answer!!
2008-02-12 11:13 pm
x = 17
2008-02-12 11:15 pm
-32+8x-8=12x+12 (distribute the -2 and the 6 to the stuff in () )

-40=4x+12 (Get the like terms and the x's together)

-52=4x

x=13


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