-8r+28=84

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Solution for -8r+28=84 equation: 


Simplifying
-8r + 28 = 84

Reorder the terms:
28 + -8r = 84

Solving
28 + -8r = 84

Solving for variable 'r'.

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

Add '-28' to each side of the equation.
28 + -28 + -8r = 84 + -28

Combine like terms: 28 + -28 = 0
0 + -8r = 84 + -28
-8r = 84 + -28

Combine like terms: 84 + -28 = 56
-8r = 56

Divide each side by '-8'.
r = -7

Simplifying
r = -7

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