17+r=20

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Solution for 17+r=20 equation: 


Simplifying
17 + r = 20

Solving
17 + r = 20

Solving for variable 'r'.

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

Add '-17' to each side of the equation.
17 + -17 + r = 20 + -17

Combine like terms: 17 + -17 = 0
0 + r = 20 + -17
r = 20 + -17

Combine like terms: 20 + -17 = 3
r = 3

Simplifying
r = 3

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