7x-8=5x+10=100

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Solution for 7x-8=5x+10=100 equation: 



7x-8=5x+10=100

We move all terms to the left:

7x-8-(5x+10)=0

We get rid of parentheses

7x-5x-10-8=0

We add all the numbers together, and all the variables

2x-18=0

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

2x=18

x=18/2

x=9

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