18x+21=111

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Solution for 18x+21=111 equation: 



18x+21=111

We move all terms to the left:

18x+21-(111)=0

We add all the numbers together, and all the variables

18x-90=0

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

18x=90

x=90/18

x=5

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