-r+9=-15

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Solution for -r+9=-15 equation: 


Simplifying
-1r + 9 = -15

Reorder the terms:
9 + -1r = -15

Solving
9 + -1r = -15

Solving for variable 'r'.

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

Add '-9' to each side of the equation.
9 + -9 + -1r = -15 + -9

Combine like terms: 9 + -9 = 0
0 + -1r = -15 + -9
-1r = -15 + -9

Combine like terms: -15 + -9 = -24
-1r = -24

Divide each side by '-1'.
r = 24

Simplifying
r = 24

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