9-2(a-1)=8-a

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Solution for 9-2(a-1)=8-a equation: 



9-2(a-1)=8-a

We move all terms to the left:

9-2(a-1)-(8-a)=0

We add all the numbers together, and all the variables

-2(a-1)-(-1a+8)+9=0

We multiply parentheses

-2a-(-1a+8)+2+9=0

We get rid of parentheses

-2a+1a-8+2+9=0

We add all the numbers together, and all the variables

-1a+3=0

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

-a=-3

a=-3/-1

a=+3

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