3(a+5)-(3a-12)=5a-7

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Solution for 3(a+5)-(3a-12)=5a-7 equation: 



3(a+5)-(3a-12)=5a-7

We move all terms to the left:

3(a+5)-(3a-12)-(5a-7)=0

We multiply parentheses

3a-(3a-12)-(5a-7)+15=0

We get rid of parentheses

3a-3a-5a+12+7+15=0

We add all the numbers together, and all the variables

-5a+34=0

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

-5a=-34

a=-34/-5

a=6+4/5

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