12r-8-12=10

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Solution for 12r-8-12=10 equation: 


Simplifying
12r + -8 + -12 = 10

Reorder the terms:
-8 + -12 + 12r = 10

Combine like terms: -8 + -12 = -20
-20 + 12r = 10

Solving
-20 + 12r = 10

Solving for variable 'r'.

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

Add '20' to each side of the equation.
-20 + 20 + 12r = 10 + 20

Combine like terms: -20 + 20 = 0
0 + 12r = 10 + 20
12r = 10 + 20

Combine like terms: 10 + 20 = 30
12r = 30

Divide each side by '12'.
r = 2.5

Simplifying
r = 2.5

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