11-2(a-1)=7+2

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Solution for 11-2(a-1)=7+2 equation: 



11-2(a-1)=7+2

We move all terms to the left:

11-2(a-1)-(7+2)=0

We add all the numbers together, and all the variables

-2(a-1)+11-9=0

We add all the numbers together, and all the variables

-2(a-1)+2=0

We multiply parentheses

-2a+2+2=0

We add all the numbers together, and all the variables

-2a+4=0

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

-2a=-4

a=-4/-2

a=+2

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