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7.klassile (võrrand+koondamine+astmed+võrre)

Authored by Heli Paal

Mathematics

KG - University

Used 17+ times

7.klassile (võrrand+koondamine+astmed+võrre)
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18 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Lahenda võrrand:
 3x + 1 = 7

x = 4
x = 1
x = 2
x = - 3

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Lahenda võrrand:
  3(2x – 1) = 6x – 3

x = 0
lahendiks iga reaalarv
lahendid puuduvad
x = - 6

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Lahenda võrrand:
 7x + 7 = - (x + 1)
 

lahendiks iga reaalarv
x = 10
x = 8
x = - 1

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Lahend võrrand:
  3(x + 1) = 3x + 2000

lahendiks iga reaalarv
x = 1997
lahendid puuduvad
x = 0

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Ava sulud:
- 6( a +7y - 9)

- 6a + 45y +81
6a + 42 y- 63
- 6a - 42y + 54
- 6a - 42y - 63

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Ava sulud:
½ (x + 2 y - 10)

0,5 x + 4 y - 20
½ x + 2 y - 5
½ x + 2y -10
0,5 x + y - 5

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Kahe järjestikuse täisarvu summa on 13. Mis arvud need on?

10 ja 3
5 ja 8
6 ja 7
1 ja 12

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