r-2-12=-27

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Solution for r-2-12=-27 equation: 


Simplifying
r + -2 + -12 = -27

Reorder the terms:
-2 + -12 + r = -27

Combine like terms: -2 + -12 = -14
-14 + r = -27

Solving
-14 + r = -27

Solving for variable 'r'.

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

Add '14' to each side of the equation.
-14 + 14 + r = -27 + 14

Combine like terms: -14 + 14 = 0
0 + r = -27 + 14
r = -27 + 14

Combine like terms: -27 + 14 = -13
r = -13

Simplifying
r = -13

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