r-4=11

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Solution for r-4=11 equation: 


Simplifying
r + -4 = 11

Reorder the terms:
-4 + r = 11

Solving
-4 + r = 11

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + r = 11 + 4

Combine like terms: -4 + 4 = 0
0 + r = 11 + 4
r = 11 + 4

Combine like terms: 11 + 4 = 15
r = 15

Simplifying
r = 15

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