Question

Rezolvați sistemul de ecuații:
x + 2y = 8
2x - y = 1
VAROOG TARE URGENT!!
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Answer 1

Răspuns:

x+2y=8 x=8-2y x=8-2y x=8-2y

2x-y=1 2 (8-2y)-y= 1 16- 4y - y= 1 16-5y=1

x=8-2y x =8-2y x=8-2×3 x=2

-5y=1-16 -5y=-15 y=3 y=3