3r+4/5=7-2r

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Solution for 3r+4/5=7-2r equation: 



3r+4/5=7-2r

We move all terms to the left:

3r+4/5-(7-2r)=0

We add all the numbers together, and all the variables

3r-(-2r+7)+4/5=0

We get rid of parentheses

3r+2r-7+4/5=0

We multiply all the terms by the denominator


3r*5+2r*5+4-7*5=0

We add all the numbers together, and all the variables

3r*5+2r*5-31=0

Wy multiply elements

15r+10r-31=0

We add all the numbers together, and all the variables

25r-31=0

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

25r=31

r=31/25

r=1+6/25

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