-4(-1x-7)=40

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Solution for -4(-1x-7)=40 equation: 



-4(-1x-7)=40

We move all terms to the left:

-4(-1x-7)-(40)=0

We multiply parentheses

4x+28-40=0

We add all the numbers together, and all the variables

4x-12=0

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

4x=12

x=12/4

x=3

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