-12+6r=9

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Solution for -12+6r=9 equation: 


Simplifying
-12 + 6r = 9

Solving
-12 + 6r = 9

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 + 6r = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 6r = 9 + 12
6r = 9 + 12

Combine like terms: 9 + 12 = 21
6r = 21

Divide each side by '6'.
r = 3.5

Simplifying
r = 3.5

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