enrique764058
19.06.2020 •
Mathematics
What is the solution to the system of equation 2y - x = 8, and y - 2x = -5
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Ответ:
Step-by-step explanation:
-x + 2y = 8
-2x + y = -5
2x - 4y = -16
-2x + y = -5
-3y = -21
y = 7
-x + 14 = 8
-x = -6
x = 6
(6,7)
Ответ:
20
x 4
80
+ 7
87
+ 5
92