45=3000/12*r

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Solution for 45=3000/12*r equation: 



45=3000/12r

We move all terms to the left:

45-(3000/12r)=0



Domain of the equation: 12r)!=0

r!=0/1

r!=0

r∈R



We add all the numbers together, and all the variables

-(+3000/12r)+45=0

We get rid of parentheses

-3000/12r+45=0

We multiply all the terms by the denominator


45*12r-3000=0

Wy multiply elements

540r-3000=0

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

540r=3000

r=3000/540

r=5+5/9

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