r+15=2r

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Solution for r+15=2r equation:


Simplifying
r + 15 = 2r

Reorder the terms:
15 + r = 2r

Solving
15 + r = 2r

Solving for variable 'r'.

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

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

Combine like terms: r + -2r = -1r
15 + -1r = 2r + -2r

Combine like terms: 2r + -2r = 0
15 + -1r = 0

Add '-15' to each side of the equation.
15 + -15 + -1r = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -1r = 0 + -15
-1r = 0 + -15

Combine like terms: 0 + -15 = -15
-1r = -15

Divide each side by '-1'.
r = 15

Simplifying
r = 15

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