-7(2a+3)=7

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



-7(2a+3)=7

We move all terms to the left:

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

We multiply parentheses

-14a-21-7=0

We add all the numbers together, and all the variables

-14a-28=0

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

-14a=28

a=28/-14

a=-2

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