3+2(-7a-4)=93

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Solution for 3+2(-7a-4)=93 equation: 



3+2(-7a-4)=93

We move all terms to the left:

3+2(-7a-4)-(93)=0

We add all the numbers together, and all the variables

2(-7a-4)-90=0

We multiply parentheses

-14a-8-90=0

We add all the numbers together, and all the variables

-14a-98=0

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

-14a=98

a=98/-14

a=-7

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