ovebrown
26.10.2020 •
Mathematics
Solve the following system by substitution. 7x + 2y = 16 –21x – 6y = 24 What is the solution ?
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Ответ:
no solution
Step-by-step explanation:
x=(16-2y)/7
-21*(16-2y)/7-6y=24
-3(16-2y)-6y
-48+6y-6y=24
-48=24
you can't solve for the variables
Ответ:
a
Step-by-step explanation: