5x-100=7x+100

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Solution for 5x-100=7x+100 equation: 



5x-100=7x+100

We move all terms to the left:

5x-100-(7x+100)=0

We get rid of parentheses

5x-7x-100-100=0

We add all the numbers together, and all the variables

-2x-200=0

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

-2x=200

x=200/-2

x=-100

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