90(r-90)=54

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Solution for 90(r-90)=54 equation: 



90(r-90)=54

We move all terms to the left:

90(r-90)-(54)=0

We multiply parentheses

90r-8100-54=0

We add all the numbers together, and all the variables

90r-8154=0

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

90r=8154

r=8154/90

r=90+3/5

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