r+23=40

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Solution for r+23=40 equation: 


Simplifying
r + 23 = 40

Reorder the terms:
23 + r = 40

Solving
23 + r = 40

Solving for variable 'r'.

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

Add '-23' to each side of the equation.
23 + -23 + r = 40 + -23

Combine like terms: 23 + -23 = 0
0 + r = 40 + -23
r = 40 + -23

Combine like terms: 40 + -23 = 17
r = 17

Simplifying
r = 17

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