15y-45=90

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Solution for 15y-45=90 equation: 



15y-45=90

We move all terms to the left:

15y-45-(90)=0

We add all the numbers together, and all the variables

15y-135=0

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

15y=135

y=135/15

y=9

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