10=7a+2a

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Solution for 10=7a+2a equation: 



10=7a+2a

We move all terms to the left:

10-(7a+2a)=0

We add all the numbers together, and all the variables

-(+9a)+10=0

We get rid of parentheses

-9a+10=0

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

-9a=-10

a=-10/-9

a=1+1/9

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