(1+r)28=90

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Solution for (1+r)28=90 equation: 



(1+r)28=90

We move all terms to the left:

(1+r)28-(90)=0

We add all the numbers together, and all the variables

(r+1)28-90=0

We multiply parentheses

28r+28-90=0

We add all the numbers together, and all the variables

28r-62=0

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

28r=62

r=62/28

r=2+3/14

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