3r-2=19

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Solution for 3r-2=19 equation: 


Simplifying
3r + -2 = 19

Reorder the terms:
-2 + 3r = 19

Solving
-2 + 3r = 19

Solving for variable 'r'.

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

Add '2' to each side of the equation.
-2 + 2 + 3r = 19 + 2

Combine like terms: -2 + 2 = 0
0 + 3r = 19 + 2
3r = 19 + 2

Combine like terms: 19 + 2 = 21
3r = 21

Divide each side by '3'.
r = 7

Simplifying
r = 7

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