-2a-5a=10-2a

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Solution for -2a-5a=10-2a equation: 



-2a-5a=10-2a

We move all terms to the left:

-2a-5a-(10-2a)=0

We add all the numbers together, and all the variables

-2a-5a-(-2a+10)=0

We add all the numbers together, and all the variables

-7a-(-2a+10)=0

We get rid of parentheses

-7a+2a-10=0

We add all the numbers together, and all the variables

-5a-10=0

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

-5a=10

a=10/-5

a=-2

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