18+r=27

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Solution for 18+r=27 equation: 


Simplifying
18 + r = 27

Solving
18 + r = 27

Solving for variable 'r'.

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

Add '-18' to each side of the equation.
18 + -18 + r = 27 + -18

Combine like terms: 18 + -18 = 0
0 + r = 27 + -18
r = 27 + -18

Combine like terms: 27 + -18 = 9
r = 9

Simplifying
r = 9

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