3(a+7)=43-4

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Solution for 3(a+7)=43-4 equation: 



3(a+7)=43-4

We move all terms to the left:

3(a+7)-(43-4)=0

We add all the numbers together, and all the variables

3(a+7)-39=0

We multiply parentheses

3a+21-39=0

We add all the numbers together, and all the variables

3a-18=0

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

3a=18

a=18/3

a=6

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