R+(-12)=3

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Solution for R+(-12)=3 equation: 


Simplifying
R + (-12) = 3
R + -12 = 3

Reorder the terms:
-12 + R = 3

Solving
-12 + R = 3

Solving for variable 'R'.

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

Add '12' to each side of the equation.
-12 + 12 + R = 3 + 12

Combine like terms: -12 + 12 = 0
0 + R = 3 + 12
R = 3 + 12

Combine like terms: 3 + 12 = 15
R = 15

Simplifying
R = 15

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