x-15+30=100-2x

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Solution for x-15+30=100-2x equation: 



x-15+30=100-2x

We move all terms to the left:

x-15+30-(100-2x)=0

We add all the numbers together, and all the variables

x-(-2x+100)-15+30=0

We add all the numbers together, and all the variables

x-(-2x+100)+15=0

We get rid of parentheses

x+2x-100+15=0

We add all the numbers together, and all the variables

3x-85=0

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

3x=85

x=85/3

x=28+1/3

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