x+2x+(2x-20)=100

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Solution for x+2x+(2x-20)=100 equation: 



x+2x+(2x-20)=100

We move all terms to the left:

x+2x+(2x-20)-(100)=0

We add all the numbers together, and all the variables

3x+(2x-20)-100=0

We get rid of parentheses

3x+2x-20-100=0

We add all the numbers together, and all the variables

5x-120=0

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

5x=120

x=120/5

x=24

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