15a-7=-3a+18+8a

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Solution for 15a-7=-3a+18+8a equation: 



15a-7=-3a+18+8a

We move all terms to the left:

15a-7-(-3a+18+8a)=0

We add all the numbers together, and all the variables

15a-(5a+18)-7=0

We get rid of parentheses

15a-5a-18-7=0

We add all the numbers together, and all the variables

10a-25=0

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

10a=25

a=25/10

a=2+1/2

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