80=21x+11

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Solution for 80=21x+11 equation: 



80=21x+11

We move all terms to the left:

80-(21x+11)=0

We get rid of parentheses

-21x-11+80=0

We add all the numbers together, and all the variables

-21x+69=0

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

-21x=-69

x=-69/-21

x=3+2/7

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