14=-7(3+r)

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Solution for 14=-7(3+r) equation: 



14=-7(3+r)

We move all terms to the left:

14-(-7(3+r))=0

We add all the numbers together, and all the variables

-(-7(r+3))+14=0



We calculate terms in parentheses: -(-7(r+3)), so:

-7(r+3)

We multiply parentheses

-7r-21

Back to the equation:

-(-7r-21)



We get rid of parentheses

7r+21+14=0

We add all the numbers together, and all the variables

7r+35=0

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

7r=-35

r=-35/7

r=-5

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