-1+8r=-121

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Solution for -1+8r=-121 equation: 


Simplifying
-1 + 8r = -121

Solving
-1 + 8r = -121

Solving for variable 'r'.

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

Add '1' to each side of the equation.
-1 + 1 + 8r = -121 + 1

Combine like terms: -1 + 1 = 0
0 + 8r = -121 + 1
8r = -121 + 1

Combine like terms: -121 + 1 = -120
8r = -120

Divide each side by '8'.
r = -15

Simplifying
r = -15

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