3(a-2)+9=12

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Solution for 3(a-2)+9=12 equation:



3(a-2)+9=12
We move all terms to the left:
3(a-2)+9-(12)=0
We add all the numbers together, and all the variables
3(a-2)-3=0
We multiply parentheses
3a-6-3=0
We add all the numbers together, and all the variables
3a-9=0
We move all terms containing a to the left, all other terms to the right
3a=9
a=9/3
a=3

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