34a-4(3a+7)=-21

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Solution for 34a-4(3a+7)=-21 equation: 



34a-4(3a+7)=-21

We move all terms to the left:

34a-4(3a+7)-(-21)=0

We add all the numbers together, and all the variables

34a-4(3a+7)+21=0

We multiply parentheses

34a-12a-28+21=0

We add all the numbers together, and all the variables

22a-7=0

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

22a=7

a=7/22

a=7/22

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