-166=7(6-6r)+2

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Solution for -166=7(6-6r)+2 equation: 



-166=7(6-6r)+2

We move all terms to the left:

-166-(7(6-6r)+2)=0

We add all the numbers together, and all the variables

-(7(-6r+6)+2)-166=0



We calculate terms in parentheses: -(7(-6r+6)+2), so:

7(-6r+6)+2

We multiply parentheses

-42r+42+2

We add all the numbers together, and all the variables

-42r+44

Back to the equation:

-(-42r+44)



We get rid of parentheses

42r-44-166=0

We add all the numbers together, and all the variables

42r-210=0

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

42r=210

r=210/42

r=5

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