r-27=42

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Solution for r-27=42 equation: 


Simplifying
r + -27 = 42

Reorder the terms:
-27 + r = 42

Solving
-27 + r = 42

Solving for variable 'r'.

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

Add '27' to each side of the equation.
-27 + 27 + r = 42 + 27

Combine like terms: -27 + 27 = 0
0 + r = 42 + 27
r = 42 + 27

Combine like terms: 42 + 27 = 69
r = 69

Simplifying
r = 69

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