4(-5r+7)=2(5r-2)+2

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Solution for 4(-5r+7)=2(5r-2)+2 equation: 



4(-5r+7)=2(5r-2)+2

We move all terms to the left:

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

We multiply parentheses

-20r-(2(5r-2)+2)+28=0



We calculate terms in parentheses: -(2(5r-2)+2), so:

2(5r-2)+2

We multiply parentheses

10r-4+2

We add all the numbers together, and all the variables

10r-2

Back to the equation:

-(10r-2)



We get rid of parentheses

-20r-10r+2+28=0

We add all the numbers together, and all the variables

-30r+30=0

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

-30r=-30

r=-30/-30

r=1

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