-4(1-5r)=8r+4(1+2r)

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Solution for -4(1-5r)=8r+4(1+2r) equation: 



-4(1-5r)=8r+4(1+2r)

We move all terms to the left:

-4(1-5r)-(8r+4(1+2r))=0

We add all the numbers together, and all the variables

-4(-5r+1)-(8r+4(2r+1))=0

We multiply parentheses

20r-(8r+4(2r+1))-4=0



We calculate terms in parentheses: -(8r+4(2r+1)), so:

8r+4(2r+1)

We multiply parentheses

8r+8r+4

We add all the numbers together, and all the variables

16r+4

Back to the equation:

-(16r+4)



We get rid of parentheses

20r-16r-4-4=0

We add all the numbers together, and all the variables

4r-8=0

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

4r=8

r=8/4

r=2

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