-3-(9-2)=7a+15

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Solution for -3-(9-2)=7a+15 equation: 



-3-(9-2)=7a+15

We move all terms to the left:

-3-(9-2)-(7a+15)=0

We add all the numbers together, and all the variables

-(7a+15)-3-7=0

We add all the numbers together, and all the variables

-(7a+15)-10=0

We get rid of parentheses

-7a-15-10=0

We add all the numbers together, and all the variables

-7a-25=0

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

-7a=25

a=25/-7

a=-3+4/7

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