7a+5(a-1)=-5+12a

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Solution for 7a+5(a-1)=-5+12a equation: 



7a+5(a-1)=-5+12a

We move all terms to the left:

7a+5(a-1)-(-5+12a)=0

We add all the numbers together, and all the variables

7a+5(a-1)-(12a-5)=0

We multiply parentheses

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

We get rid of parentheses

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

We add all the numbers together, and all the variables

=0

a=0/1

a=0

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