8x-7x+4(2x-8)=31

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Solution for 8x-7x+4(2x-8)=31 equation: 



8x-7x+4(2x-8)=31

We move all terms to the left:

8x-7x+4(2x-8)-(31)=0

We add all the numbers together, and all the variables

x+4(2x-8)-31=0

We multiply parentheses

x+8x-32-31=0

We add all the numbers together, and all the variables

9x-63=0

We move all terms containing x to the left, all other terms to the right

9x=63

x=63/9

x=7

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