9x+7=7x+49

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Solution for 9x+7=7x+49 equation: 



9x+7=7x+49

We move all terms to the left:

9x+7-(7x+49)=0

We get rid of parentheses

9x-7x-49+7=0

We add all the numbers together, and all the variables

2x-42=0

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

2x=42

x=42/2

x=21

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