8.28-2r=12

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Solution for 8.28-2r=12 equation: 


Simplifying
8.28 + -2r = 12

Solving
8.28 + -2r = 12

Solving for variable 'r'.

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

Add '-8.28' to each side of the equation.
8.28 + -8.28 + -2r = 12 + -8.28

Combine like terms: 8.28 + -8.28 = 0.00
0.00 + -2r = 12 + -8.28
-2r = 12 + -8.28

Combine like terms: 12 + -8.28 = 3.72
-2r = 3.72

Divide each side by '-2'.
r = -1.86

Simplifying
r = -1.86

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