80+60=x+21

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Solution for 80+60=x+21 equation: 



80+60=x+21

We move all terms to the left:

80+60-(x+21)=0

We add all the numbers together, and all the variables

-(x+21)+140=0

We get rid of parentheses

-x-21+140=0

We add all the numbers together, and all the variables

-1x+119=0

We move all terms containing x to the left, all other terms to the right

-x=-119

x=-119/-1

x=+119

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