5(r+30)=1/5(20r+400)

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Solution for 5(r+30)=1/5(20r+400) equation: 



5(r+30)=1/5(20r+400)

We move all terms to the left:

5(r+30)-(1/5(20r+400))=0



Domain of the equation: 5(20r+400))!=0

r∈R



We multiply parentheses

5r-(1/5(20r+400))+150=0

We multiply all the terms by the denominator


5r*5(20r+400))-(1+150*5(20r+400))=0

Wy multiply elements

25r^2(2+750r(2=0

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