R+R-R+3=12

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


Simplifying
R + R + -1R + 3 = 12

Reorder the terms:
3 + R + R + -1R = 12

Combine like terms: R + R = 2R
3 + 2R + -1R = 12

Combine like terms: 2R + -1R = 1R
3 + 1R = 12

Solving
3 + 1R = 12

Solving for variable 'R'.

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

Add '-3' to each side of the equation.
3 + -3 + 1R = 12 + -3

Combine like terms: 3 + -3 = 0
0 + 1R = 12 + -3
1R = 12 + -3

Combine like terms: 12 + -3 = 9
1R = 9

Divide each side by '1'.
R = 9

Simplifying
R = 9

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