10x-42=7x-15

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Solution for 10x-42=7x-15 equation: 



10x-42=7x-15

We move all terms to the left:

10x-42-(7x-15)=0

We get rid of parentheses

10x-7x+15-42=0

We add all the numbers together, and all the variables

3x-27=0

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

3x=27

x=27/3

x=9

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