45+2x+15=4x-20

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Solution for 45+2x+15=4x-20 equation: 



45+2x+15=4x-20

We move all terms to the left:

45+2x+15-(4x-20)=0

We add all the numbers together, and all the variables

2x-(4x-20)+60=0

We get rid of parentheses

2x-4x+20+60=0

We add all the numbers together, and all the variables

-2x+80=0

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

-2x=-80

x=-80/-2

x=+40

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