R-8-4=-2r

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Solution for R-8-4=-2r equation: 


Simplifying
R + -8 + -4 = -2r

Reorder the terms:
-8 + -4 + R = -2r

Combine like terms: -8 + -4 = -12
-12 + R = -2r

Solving
-12 + R = -2r

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 = 12 + -2r

Combine like terms: -12 + 12 = 0
0 + R = 12 + -2r
R = 12 + -2r

Simplifying
R = 12 + -2r

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