45r-45=-15r+75

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Solution for 45r-45=-15r+75 equation: 



45r-45=-15r+75

We move all terms to the left:

45r-45-(-15r+75)=0

We get rid of parentheses

45r+15r-75-45=0

We add all the numbers together, and all the variables

60r-120=0

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

60r=120

r=120/60

r=2

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