r-20=4

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Solution for r-20=4 equation: 


Simplifying
r + -20 = 4

Reorder the terms:
-20 + r = 4

Solving
-20 + r = 4

Solving for variable 'r'.

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

Add '20' to each side of the equation.
-20 + 20 + r = 4 + 20

Combine like terms: -20 + 20 = 0
0 + r = 4 + 20
r = 4 + 20

Combine like terms: 4 + 20 = 24
r = 24

Simplifying
r = 24

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