12=a-4.5

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Solution for 12=a-4.5 equation:



12=a-4.5
We move all terms to the left:
12-(a-4.5)=0
We get rid of parentheses
-a+4.5+12=0
We add all the numbers together, and all the variables
-1a+16.5=0
We move all terms containing a to the left, all other terms to the right
-a=-16.5
a=-16.5/-1
a=16+0.5/1

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