7x-21=112

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Solution for 7x-21=112 equation: 



7x-21=112

We move all terms to the left:

7x-21-(112)=0

We add all the numbers together, and all the variables

7x-133=0

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

7x=133

x=133/7

x=19

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