12r-6=102

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Solution for 12r-6=102 equation: 


Simplifying
12r + -6 = 102

Reorder the terms:
-6 + 12r = 102

Solving
-6 + 12r = 102

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + 12r = 102 + 6

Combine like terms: -6 + 6 = 0
0 + 12r = 102 + 6
12r = 102 + 6

Combine like terms: 102 + 6 = 108
12r = 108

Divide each side by '12'.
r = 9

Simplifying
r = 9

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