r-9+6=15

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Solution for r-9+6=15 equation:


Simplifying
r + -9 + 6 = 15

Reorder the terms:
-9 + 6 + r = 15

Combine like terms: -9 + 6 = -3
-3 + r = 15

Solving
-3 + r = 15

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3 + r = 15 + 3

Combine like terms: -3 + 3 = 0
0 + r = 15 + 3
r = 15 + 3

Combine like terms: 15 + 3 = 18
r = 18

Simplifying
r = 18

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