90+27=21x-9

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Solution for 90+27=21x-9 equation:



90+27=21x-9
We move all terms to the left:
90+27-(21x-9)=0
We add all the numbers together, and all the variables
-(21x-9)+117=0
We get rid of parentheses
-21x+9+117=0
We add all the numbers together, and all the variables
-21x+126=0
We move all terms containing x to the left, all other terms to the right
-21x=-126
x=-126/-21
x=+6

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