9x-7=42+2x

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Solution for 9x-7=42+2x equation: 



9x-7=42+2x

We move all terms to the left:

9x-7-(42+2x)=0

We add all the numbers together, and all the variables

9x-(2x+42)-7=0

We get rid of parentheses

9x-2x-42-7=0

We add all the numbers together, and all the variables

7x-49=0

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

7x=49

x=49/7

x=7

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