-4=-1+8-2a

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Solution for -4=-1+8-2a equation: 



-4=-1+8-2a

We move all terms to the left:

-4-(-1+8-2a)=0

We add all the numbers together, and all the variables

-(-2a+7)-4=0

We get rid of parentheses

2a-7-4=0

We add all the numbers together, and all the variables

2a-11=0

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

2a=11

a=11/2

a=5+1/2

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