3(-7-4x)=87

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Solution for 3(-7-4x)=87 equation: 



3(-7-4x)=87

We move all terms to the left:

3(-7-4x)-(87)=0

We add all the numbers together, and all the variables

3(-4x-7)-87=0

We multiply parentheses

-12x-21-87=0

We add all the numbers together, and all the variables

-12x-108=0

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

-12x=108

x=108/-12

x=-9

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