r+4-4=4

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Solution for r+4-4=4 equation: 


Simplifying
r + 4 + -4 = 4

Reorder the terms:
4 + -4 + r = 4

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

Solving
r = 4

Solving for variable 'r'.

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

Simplifying
r = 4

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