r-25=15

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Solution for r-25=15 equation: 


Simplifying
r + -25 = 15

Reorder the terms:
-25 + r = 15

Solving
-25 + r = 15

Solving for variable 'r'.

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

Add '25' to each side of the equation.
-25 + 25 + r = 15 + 25

Combine like terms: -25 + 25 = 0
0 + r = 15 + 25
r = 15 + 25

Combine like terms: 15 + 25 = 40
r = 40

Simplifying
r = 40

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