r+30=19

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Solution for r+30=19 equation: 


Simplifying
r + 30 = 19

Reorder the terms:
30 + r = 19

Solving
30 + r = 19

Solving for variable 'r'.

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

Add '-30' to each side of the equation.
30 + -30 + r = 19 + -30

Combine like terms: 30 + -30 = 0
0 + r = 19 + -30
r = 19 + -30

Combine like terms: 19 + -30 = -11
r = -11

Simplifying
r = -11

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