19=3(1-8r)+8(2-2r)

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Solution for 19=3(1-8r)+8(2-2r) equation: 



19=3(1-8r)+8(2-2r)

We move all terms to the left:

19-(3(1-8r)+8(2-2r))=0

We add all the numbers together, and all the variables

-(3(-8r+1)+8(-2r+2))+19=0



We calculate terms in parentheses: -(3(-8r+1)+8(-2r+2)), so:

3(-8r+1)+8(-2r+2)

We multiply parentheses

-24r-16r+3+16

We add all the numbers together, and all the variables

-40r+19

Back to the equation:

-(-40r+19)



We get rid of parentheses

40r-19+19=0

We add all the numbers together, and all the variables

40r=0

r=0/40

r=0

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