28-7r=7(6+r)

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Solution for 28-7r=7(6+r) equation: 



28-7r=7(6+r)

We move all terms to the left:

28-7r-(7(6+r))=0

We add all the numbers together, and all the variables

-7r-(7(r+6))+28=0



We calculate terms in parentheses: -(7(r+6)), so:

7(r+6)

We multiply parentheses

7r+42

Back to the equation:

-(7r+42)



We get rid of parentheses

-7r-7r-42+28=0

We add all the numbers together, and all the variables

-14r-14=0

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

-14r=14

r=14/-14

r=-1

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