Madeline6117
01.09.2020 •
Mathematics
9. Margie and Glenn are trying to solve the following system of equations.
5x - 4y= 23
7x + 8y = 5
Glenn thinks that the elimination method will not work. Margie is not so sure about that.
With your team, decide whether Glenn is correct and write a few sentences justifying
your conclusion. If the elimination method will work, show how. If not, use another
method to solve the system.
Solved
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Ответ:
7x + 8y = 5
10x - 8y = 46
7x + 8y = 5
17x = 51
X = 51/17
X = 3
7(3) + 8y = 5
21+8y = 5
8y = 5 - 21
8y = -16
Y = -16/8
Y = -2
Ответ:
Square
Step-by-step explanation: