-4-8r=84

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Solution for -4-8r=84 equation: 


Simplifying
-4 + -8r = 84

Solving
-4 + -8r = 84

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '4' to each side of the equation.
-4 + 4 + -8r = 84 + 4

Combine like terms: -4 + 4 = 0
0 + -8r = 84 + 4
-8r = 84 + 4

Combine like terms: 84 + 4 = 88
-8r = 88

Divide each side by '-8'.
r = -11

Simplifying
r = -11

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