40=x-15+3x

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Solution for 40=x-15+3x equation: 



40=x-15+3x

We move all terms to the left:

40-(x-15+3x)=0

We add all the numbers together, and all the variables

-(4x-15)+40=0

We get rid of parentheses

-4x+15+40=0

We add all the numbers together, and all the variables

-4x+55=0

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

-4x=-55

x=-55/-4

x=13+3/4

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