20+5r=10

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Solution for 20+5r=10 equation: 



20+5r=10

We move all terms to the left:

20+5r-(10)=0

We add all the numbers together, and all the variables

5r+10=0

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

5r=-10

r=-10/5

r=-2

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