2x-21=10x+51

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Solution for 2x-21=10x+51 equation: 



2x-21=10x+51

We move all terms to the left:

2x-21-(10x+51)=0

We get rid of parentheses

2x-10x-51-21=0

We add all the numbers together, and all the variables

-8x-72=0

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

-8x=72

x=72/-8

x=-9

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