umarhaley
07.07.2019 •
Mathematics
Given 3x + y = 17 and x + 3y = -1. find the value of 3x + 3y.
(a) 12
(b) 16
(c) 22
(d) 28
(e) 40
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Ответ:
a
step-by-step explanation:
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Ответ:
68 it think
Step-by-step explanation: