-8r+3=115

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Solution for -8r+3=115 equation: 


Simplifying
-8r + 3 = 115

Reorder the terms:
3 + -8r = 115

Solving
3 + -8r = 115

Solving for variable 'r'.

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

Add '-3' to each side of the equation.
3 + -3 + -8r = 115 + -3

Combine like terms: 3 + -3 = 0
0 + -8r = 115 + -3
-8r = 115 + -3

Combine like terms: 115 + -3 = 112
-8r = 112

Divide each side by '-8'.
r = -14

Simplifying
r = -14

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