20r-7(45-r)=545

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Solution for 20r-7(45-r)=545 equation: 



20r-7(45-r)=545

We move all terms to the left:

20r-7(45-r)-(545)=0

We add all the numbers together, and all the variables

20r-7(-1r+45)-545=0

We multiply parentheses

20r+7r-315-545=0

We add all the numbers together, and all the variables

27r-860=0

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

27r=860

r=860/27

r=31+23/27

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