6a+7=-1-2a

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Solution for 6a+7=-1-2a equation: 



6a+7=-1-2a

We move all terms to the left:

6a+7-(-1-2a)=0

We add all the numbers together, and all the variables

6a-(-2a-1)+7=0

We get rid of parentheses

6a+2a+1+7=0

We add all the numbers together, and all the variables

8a+8=0

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

8a=-8

a=-8/8

a=-1

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