Equacions

Equacions

8th Grade

10 Qs

quiz-placeholder

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Equacions

Equacions

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

Created by

Mates PA

Used 122+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quina x resol -3x = 9

6

12

-3

3

Answer explanation

El -3 multiplica, per tant es transposa dividint.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quina x resol -3x - 1 = 9 + 2x

2

-8

-2

8

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quina x resol 8x – 7   =   9 + 3· (x - 2)

2

-2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

-9

9

-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

El pare d'Ana és 5 anys més jove que sa mare i la meitat de l'edat d'aquesta és 23. Quina edat té el pare d'Ana?

11.5

23

46

42

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quina equació equival al problema "Al sumar el seu doble, la seva meitat i 15, obtenim 99."

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Carmen té 16 anys i els seus dos germans en tenen 2 i 3. Quants anys cal que passen perquè el doble de la suma de las edats dels germans de Carmen sigui la mateixa que la seva?

5,2

9

2

18 

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