7x-99=2x+1=180

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Solution for 7x-99=2x+1=180 equation: 



7x-99=2x+1=180

We move all terms to the left:

7x-99-(2x+1)=0

We get rid of parentheses

7x-2x-1-99=0

We add all the numbers together, and all the variables

5x-100=0

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

5x=100

x=100/5

x=20

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