7-r=2r-7/5

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Solution for 7-r=2r-7/5 equation: 



7-r=2r-7/5

We move all terms to the left:

7-r-(2r-7/5)=0

We add all the numbers together, and all the variables

-r-(+2r-7/5)+7=0

We add all the numbers together, and all the variables

-1r-(+2r-7/5)+7=0

We get rid of parentheses

-1r-2r+7+7/5=0

We multiply all the terms by the denominator


-1r*5-2r*5+7+7*5=0

We add all the numbers together, and all the variables

-1r*5-2r*5+42=0

Wy multiply elements

-5r-10r+42=0

We add all the numbers together, and all the variables

-15r+42=0

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

-15r=-42

r=-42/-15

r=2+4/5

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