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Lerok [7]
3 years ago
15

+ 9 y Find x when y = 6 and R = 7

Mathematics
1 answer:
rodikova [14]3 years ago
5 0

Answer:

15 2/3

Step-by-step explanation:

R = 3x + 9y

7 = 3x + 9(6)

7 = 3x + 54

-47 = 3x

x = -15.6

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