190=10+9r

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Solution for 190=10+9r equation: 



190=10+9r

We move all terms to the left:

190-(10+9r)=0

We add all the numbers together, and all the variables

-(9r+10)+190=0

We get rid of parentheses

-9r-10+190=0

We add all the numbers together, and all the variables

-9r+180=0

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

-9r=-180

r=-180/-9

r=+20

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