r-15=12

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Solution for r-15=12 equation:


Simplifying
r + -15 = 12

Reorder the terms:
-15 + r = 12

Solving
-15 + r = 12

Solving for variable 'r'.

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

Add '15' to each side of the equation.
-15 + 15 + r = 12 + 15

Combine like terms: -15 + 15 = 0
0 + r = 12 + 15
r = 12 + 15

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

Simplifying
r = 27

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