x-15+x-25+2x+40=90+3x

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Solution for x-15+x-25+2x+40=90+3x equation: 



x-15+x-25+2x+40=90+3x

We move all terms to the left:

x-15+x-25+2x+40-(90+3x)=0

We add all the numbers together, and all the variables

x+x+2x-(3x+90)-15-25+40=0

We add all the numbers together, and all the variables

4x-(3x+90)=0

We get rid of parentheses

4x-3x-90=0

We add all the numbers together, and all the variables

x-90=0

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

x=90

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