1.3=20/10-7r

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Solution for 1.3=20/10-7r equation: 



1.3=20/10-7r

We move all terms to the left:

1.3-(20/10-7r)=0



Domain of the equation: 10-7r)!=0

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

-7r)!=-10

r!=-10/1

r!=-10

r∈R



We add all the numbers together, and all the variables

-(-7r+2)+1.3=0

We get rid of parentheses

7r-2+1.3=0

We add all the numbers together, and all the variables

7r-0.7=0

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

7r=0.7

r=0.7/7

r=0.7/7

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