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

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



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

We move all terms to the left:

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

We multiply parentheses

-7x+4x+12-21=0

We add all the numbers together, and all the variables

-3x-9=0

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

-3x=9

x=9/-3

x=-3

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