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Mathematics
Guillermo Freeman
24 September, 02:02
How do you do this?
-7x - 3x + 2 = - 8x - 8
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Kenzie Sanford
24 September, 02:35
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You need to combine like-terms first. so combine - 7x with - 3x, and you'll get - 10x + 2=-8x-8. then to simplify this, add the 8 over to the 2. you'll have - 10x+10=-8x. then add 10x to the - 8x. you should get 10=2x. then just divide the 10 by 2 to get x by itself. so you answer should be x=5.
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Nayeli Davila
24 September, 05:39
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-7x - 3x + 2 = - 8x - 8
combine like terms
-10x + 2 = - 8x - 8
add 10x to each side
-10x + 10x + 2 = - 8x + 10x - 8
2 = 2x-8
add 8 to each side
2+8 = 2x-8+8
10 = 2x
divide each side by 2
10/2 = 2x/2
5 = x
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