0.4r-7=0.3+2.8

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Solution for 0.4r-7=0.3+2.8 equation: 



0.4r-7=0.3+2.8

We move all terms to the left:

0.4r-7-(0.3+2.8)=0

We add all the numbers together, and all the variables

0.4r-7-(3.1)=0

We add all the numbers together, and all the variables

0.4r-10.1=0

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

0.4r=10.1

r=10.1/0.4

r=25+0.1/0.4

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