45=7y-2y

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Solution for 45=7y-2y equation: 



45=7y-2y

We move all terms to the left:

45-(7y-2y)=0

We add all the numbers together, and all the variables

-(+5y)+45=0

We get rid of parentheses

-5y+45=0

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

-5y=-45

y=-45/-5

y=+9

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