-3x-4(7x+21)=71

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Solution for -3x-4(7x+21)=71 equation: 



-3x-4(7x+21)=71

We move all terms to the left:

-3x-4(7x+21)-(71)=0

We multiply parentheses

-3x-28x-84-71=0

We add all the numbers together, and all the variables

-31x-155=0

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

-31x=155

x=155/-31

x=-5

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