r+(-8)=15

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Solution for r+(-8)=15 equation: 


Simplifying
r + (-8) = 15
r + -8 = 15

Reorder the terms:
-8 + r = 15

Solving
-8 + r = 15

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + r = 15 + 8

Combine like terms: -8 + 8 = 0
0 + r = 15 + 8
r = 15 + 8

Combine like terms: 15 + 8 = 23
r = 23

Simplifying
r = 23

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