7-2(3x-4)=-21

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Solution for 7-2(3x-4)=-21 equation: 



7-2(3x-4)=-21

We move all terms to the left:

7-2(3x-4)-(-21)=0

We add all the numbers together, and all the variables

-2(3x-4)+28=0

We multiply parentheses

-6x+8+28=0

We add all the numbers together, and all the variables

-6x+36=0

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

-6x=-36

x=-36/-6

x=+6

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