7(3a-2)+4a=86

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Solution for 7(3a-2)+4a=86 equation: 



7(3a-2)+4a=86

We move all terms to the left:

7(3a-2)+4a-(86)=0

We add all the numbers together, and all the variables

4a+7(3a-2)-86=0

We multiply parentheses

4a+21a-14-86=0

We add all the numbers together, and all the variables

25a-100=0

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

25a=100

a=100/25

a=4

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