R*-2+11=15

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Solution for R*-2+11=15 equation: 


Simplifying
R * -2 + 11 = 15

Reorder the terms for easier multiplication:
-2R + 11 = 15

Reorder the terms:
11 + -2R = 15

Solving
11 + -2R = 15

Solving for variable 'R'.

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

Add '-11' to each side of the equation.
11 + -11 + -2R = 15 + -11

Combine like terms: 11 + -11 = 0
0 + -2R = 15 + -11
-2R = 15 + -11

Combine like terms: 15 + -11 = 4
-2R = 4

Divide each side by '-2'.
R = -2

Simplifying
R = -2

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