R+(-15)=-18

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Solution for R+(-15)=-18 equation: 


Simplifying
R + (-15) = -18
R + -15 = -18

Reorder the terms:
-15 + R = -18

Solving
-15 + R = -18

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 = -18 + 15

Combine like terms: -15 + 15 = 0
0 + R = -18 + 15
R = -18 + 15

Combine like terms: -18 + 15 = -3
R = -3

Simplifying
R = -3

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