x*2+2x+20=100

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Solution for x*2+2x+20=100 equation: 



x*2+2x+20=100

We move all terms to the left:

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

We add all the numbers together, and all the variables

2x+x*2-80=0

Wy multiply elements

2x+2x-80=0

We add all the numbers together, and all the variables

4x-80=0

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

4x=80

x=80/4

x=20

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