12r-4-8=

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Solution for 12r-4-8= equation:


Simplifying
12r + -4 + -8 = 0

Reorder the terms:
-4 + -8 + 12r = 0

Combine like terms: -4 + -8 = -12
-12 + 12r = 0

Solving
-12 + 12r = 0

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 + 12r = 0 + 12

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

Combine like terms: 0 + 12 = 12
12r = 12

Divide each side by '12'.
r = 1

Simplifying
r = 1

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