9a-3(2a-1)=18

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Solution for 9a-3(2a-1)=18 equation: 



9a-3(2a-1)=18

We move all terms to the left:

9a-3(2a-1)-(18)=0

We multiply parentheses

9a-6a+3-18=0

We add all the numbers together, and all the variables

3a-15=0

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

3a=15

a=15/3

a=5

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