7a-3-2a=12

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Solution for 7a-3-2a=12 equation:



7a-3-2a=12
We move all terms to the left:
7a-3-2a-(12)=0
We add all the numbers together, and all the variables
5a-15=0
We move all terms containing a to the left, all other terms to the right
5a=15
a=15/5
a=3

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