R+36=21

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Solution for R+36=21 equation: 


Simplifying
R + 36 = 21

Reorder the terms:
36 + R = 21

Solving
36 + R = 21

Solving for variable 'R'.

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

Add '-36' to each side of the equation.
36 + -36 + R = 21 + -36

Combine like terms: 36 + -36 = 0
0 + R = 21 + -36
R = 21 + -36

Combine like terms: 21 + -36 = -15
R = -15

Simplifying
R = -15

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