27=a-15

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Solution for 27=a-15 equation:



27=a-15
We move all terms to the left:
27-(a-15)=0
We get rid of parentheses
-a+15+27=0
We add all the numbers together, and all the variables
-1a+42=0
We move all terms containing a to the left, all other terms to the right
-a=-42
a=-42/-1
a=+42

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