-x+7(2x+5)=100

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Solution for -x+7(2x+5)=100 equation: 



-x+7(2x+5)=100

We move all terms to the left:

-x+7(2x+5)-(100)=0

We add all the numbers together, and all the variables

-1x+7(2x+5)-100=0

We multiply parentheses

-1x+14x+35-100=0

We add all the numbers together, and all the variables

13x-65=0

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

13x=65

x=65/13

x=5

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