3+2(a-3)=7

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Solution for 3+2(a-3)=7 equation: 



3+2(a-3)=7

We move all terms to the left:

3+2(a-3)-(7)=0

We add all the numbers together, and all the variables

2(a-3)-4=0

We multiply parentheses

2a-6-4=0

We add all the numbers together, and all the variables

2a-10=0

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

2a=10

a=10/2

a=5

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