R+30=18

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Solution for R+30=18 equation: 


Simplifying
R + 30 = 18

Reorder the terms:
30 + R = 18

Solving
30 + R = 18

Solving for variable 'R'.

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

Add '-30' to each side of the equation.
30 + -30 + R = 18 + -30

Combine like terms: 30 + -30 = 0
0 + R = 18 + -30
R = 18 + -30

Combine like terms: 18 + -30 = -12
R = -12

Simplifying
R = -12

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