40+14r=2(-4r-13)

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Solution for 40+14r=2(-4r-13) equation: 



40+14r=2(-4r-13)

We move all terms to the left:

40+14r-(2(-4r-13))=0



We calculate terms in parentheses: -(2(-4r-13)), so:

2(-4r-13)

We multiply parentheses

-8r-26

Back to the equation:

-(-8r-26)



We get rid of parentheses

14r+8r+26+40=0

We add all the numbers together, and all the variables

22r+66=0

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

22r=-66

r=-66/22

r=-3

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