5+r=20

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Solution for 5+r=20 equation: 


Simplifying
5 + r = 20

Solving
5 + r = 20

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 = 20 + -5

Combine like terms: 5 + -5 = 0
0 + r = 20 + -5
r = 20 + -5

Combine like terms: 20 + -5 = 15
r = 15

Simplifying
r = 15

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