7r-19=9

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Solution for 7r-19=9 equation: 


Simplifying
7r + -19 = 9

Reorder the terms:
-19 + 7r = 9

Solving
-19 + 7r = 9

Solving for variable 'r'.

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

Add '19' to each side of the equation.
-19 + 19 + 7r = 9 + 19

Combine like terms: -19 + 19 = 0
0 + 7r = 9 + 19
7r = 9 + 19

Combine like terms: 9 + 19 = 28
7r = 28

Divide each side by '7'.
r = 4

Simplifying
r = 4

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