-45=2x-7x

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Solution for -45=2x-7x equation: 



-45=2x-7x

We move all terms to the left:

-45-(2x-7x)=0

We add all the numbers together, and all the variables

-(-5x)-45=0

We get rid of parentheses

5x-45=0

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

5x=45

x=45/5

x=9

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