3+3(a-1)-2a=5

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Solution for 3+3(a-1)-2a=5 equation: 



3+3(a-1)-2a=5

We move all terms to the left:

3+3(a-1)-2a-(5)=0

We add all the numbers together, and all the variables

-2a+3(a-1)-2=0

We multiply parentheses

-2a+3a-3-2=0

We add all the numbers together, and all the variables

a-5=0

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

a=5

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