-21+12x=19+10x

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Solution for -21+12x=19+10x equation: 



-21+12x=19+10x

We move all terms to the left:

-21+12x-(19+10x)=0

We add all the numbers together, and all the variables

12x-(10x+19)-21=0

We get rid of parentheses

12x-10x-19-21=0

We add all the numbers together, and all the variables

2x-40=0

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

2x=40

x=40/2

x=20

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