5a+2a-1=-10-2a

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Solution for 5a+2a-1=-10-2a equation: 



5a+2a-1=-10-2a

We move all terms to the left:

5a+2a-1-(-10-2a)=0

We add all the numbers together, and all the variables

5a+2a-(-2a-10)-1=0

We add all the numbers together, and all the variables

7a-(-2a-10)-1=0

We get rid of parentheses

7a+2a+10-1=0

We add all the numbers together, and all the variables

9a+9=0

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

9a=-9

a=-9/9

a=-1

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