12-8r=36

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Solution for 12-8r=36 equation: 


Simplifying
12 + -8r = 36

Solving
12 + -8r = 36

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + -8r = 36 + -12

Combine like terms: 12 + -12 = 0
0 + -8r = 36 + -12
-8r = 36 + -12

Combine like terms: 36 + -12 = 24
-8r = 24

Divide each side by '-8'.
r = -3

Simplifying
r = -3

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