r-15=-6

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Solution for r-15=-6 equation: 


Simplifying
r + -15 = -6

Reorder the terms:
-15 + r = -6

Solving
-15 + r = -6

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 + r = -6 + 15

Combine like terms: -15 + 15 = 0
0 + r = -6 + 15
r = -6 + 15

Combine like terms: -6 + 15 = 9
r = 9

Simplifying
r = 9

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