9x-9=7x-49

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



9x-9=7x-49

We move all terms to the left:

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

We get rid of parentheses

9x-7x+49-9=0

We add all the numbers together, and all the variables

2x+40=0

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

2x=-40

x=-40/2

x=-20

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