2x-15=7x+21

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Solution for 2x-15=7x+21 equation: 



2x-15=7x+21

We move all terms to the left:

2x-15-(7x+21)=0

We get rid of parentheses

2x-7x-21-15=0

We add all the numbers together, and all the variables

-5x-36=0

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

-5x=36

x=36/-5

x=-7+1/5

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