r+6=18

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Solution for r+6=18 equation: 


Simplifying
r + 6 = 18

Reorder the terms:
6 + r = 18

Solving
6 + r = 18

Solving for variable 'r'.

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

Add '-6' to each side of the equation.
6 + -6 + r = 18 + -6

Combine like terms: 6 + -6 = 0
0 + r = 18 + -6
r = 18 + -6

Combine like terms: 18 + -6 = 12
r = 12

Simplifying
r = 12

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