gokusupersaiyan12345
20.01.2021 •
Mathematics
8) Which ordered pair is in the solution set of the following system of inequalities?
(3x + 4y > 12
[y>2x-1
A. (3,-5)
B. (6, 0)
C. (-8, -1)
D. (-2, 6)
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Ответ:
x=-2, y=3
Step-by-step explanation:
4x + 3y = 1 Equ 1
x - 3y = -11Equ 2
5x=-10
x=-2
From equ 1
4x + 3y =1
4(-2)+3y=1
-8+3y=1
3y=1+8
3y=9
y=3