180=47+2a+a-20

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Solution for 180=47+2a+a-20 equation:



180=47+2a+a-20
We move all terms to the left:
180-(47+2a+a-20)=0
We add all the numbers together, and all the variables
-(3a+27)+180=0
We get rid of parentheses
-3a-27+180=0
We add all the numbers together, and all the variables
-3a+153=0
We move all terms containing a to the left, all other terms to the right
-3a=-153
a=-153/-3
a=+51

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