lillibell07 lillibell07

24-01-2021
Mathematics

contestada

2 ( r - 1 ) + 3 = 19

Respuesta :

ciaromee ciaromee

24-01-2021

Answer:

r = 9

Step-by-step explanation:

2 ( r - 1 ) + 3 = 19

2r - 2 = 19 - 3

2r - 2 = 16

2r = 16 + 2

2r = 18

r = 9

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