r+12=19

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Solution for r+12=19 equation: 


Simplifying
r + 12 = 19

Reorder the terms:
12 + r = 19

Solving
12 + r = 19

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + r = 19 + -12

Combine like terms: 12 + -12 = 0
0 + r = 19 + -12
r = 19 + -12

Combine like terms: 19 + -12 = 7
r = 7

Simplifying
r = 7

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