
Lineaarvõrrandi lahendamine
Mathematics
7th - 8th Grade
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16 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nendest võrranditest on lineaarvõrrandid
2x+13
2x-13=-1
2x2+13=1
2x+2y=3
3=2+7
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
3x+12 on
avaldis
võrdus
võrrand
lineaarvõrrand
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-(3x+7y-13) =
3x+7y-13
-3x+7y-13
-3x-7y+13
10xy-13
-3xy
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Avaldise lihtsustamisel saad sellise avaldise: 5x+3x + 12xy+5y. Järgmine samm on:
Sulgude avamine
Sarnaste liikmete koondamine
See ongi vastus, rohkem midagi teha ei saa.
Arvutan välja
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milline lahend ei ole lineaarvõrrandi lahend?
x=3
Võrrandil puuduvad lahendid.
Võrrandil on kaks lahendit - x=2, x=3
Võrrandil on lõpmata palju lahendeid
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kahte võrrandit nimetatakse samaväärseks, kui
nad näevad ühesugused välja
neil on sama lahendihulk
neil on samad tundmatud
nende üks lahend on sama
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kui lineaarvõrrandi lahendamisel tekib olukord x=0, siis
võrrandil on üks lahend, x=0
sellele võrrandil on lõpmatult palju lahendeid
sellel võrrandil lahendid puuduvad
olen midagi valesti teinud ja pean otsast alustama
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