172=28r+32

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Solution for 172=28r+32 equation: 



172=28r+32

We move all terms to the left:

172-(28r+32)=0

We get rid of parentheses

-28r-32+172=0

We add all the numbers together, and all the variables

-28r+140=0

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

-28r=-140

r=-140/-28

r=+5

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