r+r+15=-17

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Solution for r+r+15=-17 equation: 


Simplifying
r + r + 15 = -17

Reorder the terms:
15 + r + r = -17

Combine like terms: r + r = 2r
15 + 2r = -17

Solving
15 + 2r = -17

Solving for variable 'r'.

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

Add '-15' to each side of the equation.
15 + -15 + 2r = -17 + -15

Combine like terms: 15 + -15 = 0
0 + 2r = -17 + -15
2r = -17 + -15

Combine like terms: -17 + -15 = -32
2r = -32

Divide each side by '2'.
r = -16

Simplifying
r = -16

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