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19 votes
2 ( r - 1 ) + 3 = 19

User Vempo
by
7.5k points

1 Answer

3 votes

Answer:

r = 9

Explanation:

2 ( r - 1 ) + 3 = 19

2r - 2 = 19 - 3

2r - 2 = 16

2r = 16 + 2

2r = 18

r = 9

User Fahad Rauf
by
8.1k points