R-8=3r-12

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Solution for R-8=3r-12 equation:


Simplifying
R + -8 = 3r + -12

Reorder the terms:
-8 + R = 3r + -12

Reorder the terms:
-8 + R = -12 + 3r

Solving
-8 + R = -12 + 3r

Solving for variable 'R'.

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

Add '8' to each side of the equation.
-8 + 8 + R = -12 + 8 + 3r

Combine like terms: -8 + 8 = 0
0 + R = -12 + 8 + 3r
R = -12 + 8 + 3r

Combine like terms: -12 + 8 = -4
R = -4 + 3r

Simplifying
R = -4 + 3r

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