5-2(a-1)=4+9

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Solution for 5-2(a-1)=4+9 equation: 



5-2(a-1)=4+9

We move all terms to the left:

5-2(a-1)-(4+9)=0

We add all the numbers together, and all the variables

-2(a-1)+5-13=0

We add all the numbers together, and all the variables

-2(a-1)-8=0

We multiply parentheses

-2a+2-8=0

We add all the numbers together, and all the variables

-2a-6=0

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

-2a=6

a=6/-2

a=-3

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