.5r-12=-27

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Solution for .5r-12=-27 equation: 


Simplifying
0.5r + -12 = -27

Reorder the terms:
-12 + 0.5r = -27

Solving
-12 + 0.5r = -27

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 + 0.5r = -27 + 12

Combine like terms: -12 + 12 = 0
0 + 0.5r = -27 + 12
0.5r = -27 + 12

Combine like terms: -27 + 12 = -15
0.5r = -15

Divide each side by '0.5'.
r = -30

Simplifying
r = -30

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