7(2x-4)=-21

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



7(2x-4)=-21

We move all terms to the left:

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

We add all the numbers together, and all the variables

7(2x-4)+21=0

We multiply parentheses

14x-28+21=0

We add all the numbers together, and all the variables

14x-7=0

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

14x=7

x=7/14

x=1/2

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