100-2x=10+x

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Solution for 100-2x=10+x equation: 



100-2x=10+x

We move all terms to the left:

100-2x-(10+x)=0

We add all the numbers together, and all the variables

-2x-(x+10)+100=0

We get rid of parentheses

-2x-x-10+100=0

We add all the numbers together, and all the variables

-3x+90=0

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

-3x=-90

x=-90/-3

x=+30

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