3a-9a+10=-2a-5-7

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Solution for 3a-9a+10=-2a-5-7 equation: 



3a-9a+10=-2a-5-7

We move all terms to the left:

3a-9a+10-(-2a-5-7)=0

We add all the numbers together, and all the variables

3a-9a-(-2a-12)+10=0

We add all the numbers together, and all the variables

-6a-(-2a-12)+10=0

We get rid of parentheses

-6a+2a+12+10=0

We add all the numbers together, and all the variables

-4a+22=0

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

-4a=-22

a=-22/-4

a=5+1/2

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