42.40=1.06r

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Solution for 42.40=1.06r equation: 



42.40=1.06r

We move all terms to the left:

42.40-(1.06r)=0

We add all the numbers together, and all the variables

-(+1.06r)+42.40=0

We add all the numbers together, and all the variables

-(+1.06r)+42.4=0

We get rid of parentheses

-1.06r+42.4=0

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

-1.06r=-42.4

r=-42.4/-1.06

r=40+-7.105427357601E-15/1.06

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