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-3a+3+4a=8-30
We move all terms to the left:
-3a+3+4a-(8-30)=0
We add all the numbers together, and all the variables
-3a+4a+3-(-22)=0
We add all the numbers together, and all the variables
a+25=0
We move all terms containing a to the left, all other terms to the right
a=-25
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