10x-15=21-8x

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Solution for 10x-15=21-8x equation: 



10x-15=21-8x

We move all terms to the left:

10x-15-(21-8x)=0

We add all the numbers together, and all the variables

10x-(-8x+21)-15=0

We get rid of parentheses

10x+8x-21-15=0

We add all the numbers together, and all the variables

18x-36=0

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

18x=36

x=36/18

x=2

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