r+5=15

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Solution for r+5=15 equation: 


Simplifying
r + 5 = 15

Reorder the terms:
5 + r = 15

Solving
5 + r = 15

Solving for variable 'r'.

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

Add '-5' to each side of the equation.
5 + -5 + r = 15 + -5

Combine like terms: 5 + -5 = 0
0 + r = 15 + -5
r = 15 + -5

Combine like terms: 15 + -5 = 10
r = 10

Simplifying
r = 10

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