0.02r+0.7=0.8-0.03r

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Solution for 0.02r+0.7=0.8-0.03r equation: 



0.02r+0.7=0.8-0.03r

We move all terms to the left:

0.02r+0.7-(0.8-0.03r)=0

We add all the numbers together, and all the variables

0.02r-(-0.03r+0.8)+0.7=0

We get rid of parentheses

0.02r+0.03r-0.8+0.7=0

We add all the numbers together, and all the variables

0.05r-0.1=0

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

0.05r=0.1

r=0.1/0.05

r=2

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