SISTEME DE ECUAȚII -1MARTIE 2020
Quiz
•
Mathematics
•
7th - 8th Grade
•
Hard

MOLDOVAN GHITA
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Verificați dacă următoarea pereche de numere (1; 1) este soluțiie pentru sistemele de ecuații x+y=2 și 2x+3y=5.
da
nu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rezolvați prin metoda substituției sistemul de ecuații : x+y=8 și x-y=2
x=3, y=5
x=5, y=3
x= - 5, y=3
x=5, y= - 3
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Rezolvați prin metoda substituției sistemul de ecuații : x+3y= -4 și 2x+y=2.
x=-2, y=-2
x=3, y=-2
x=2, y=-3
x=2, y=-2
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Rezolvați prin metoda reducerii sistemul de ecuații : 4x-5y= -2 și x+3y=8.
x= -2 , y= -2
x= -2 , y=2
x=2 , y=2
x=2 , y= -2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rezolvați prin metoda reducerii sistemul de ecuații : 5x+4y= 2 și 3x+5y=-4.
x=2, y=-2
x=-2, y=-2
x=2, y=2
x=-2, y=2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rezolvați sistemul de ecuații : 5(x-2)- y= 2 și 3(y-5) -5=x.
x=- 4, y=- 8
x=3, y=8
x=4, y=6
x=4, y=8
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rezolvați sistemul de ecuații : 4(x-1)+5=y+4 și 2(1-x) +1=2-y.
x=-1, y=-1
x=1, y=1
x=2, y=1
x=2, y=3
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