2(r+-77)=-76

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Solution for 2(r+-77)=-76 equation: 



2(r+-77)=-76

We move all terms to the left:

2(r+-77)-(-76)=0

We add all the numbers together, and all the variables

2(r-77)-(-76)=0

We add all the numbers together, and all the variables

2(r-77)+76=0

We multiply parentheses

2r-154+76=0

We add all the numbers together, and all the variables

2r-78=0

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

2r=78

r=78/2

r=39

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