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math

Authored by serli himmatus

Mathematics

7th Grade

CCSS covered

Used 30+ times

math
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

diketahui persamaan 5 (3x + 8) = 2 (3x + 2), maka nilai x2 adalah

-4

16

-16

36

Answer explanation

5 (3x + 8) = 2 (3x + 2)

(5 x 3x) + (5 x 8) = (2 x 3x) + (2 x 2)

15x + 40 = 6x + 4

15x - 6x = 4 - 40

9x = -36

x = -4

Tags

CCSS.8.EE.C.7B

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

nilai y dari persamaan

-5y - 180 = 60 - (-7y) adalah..

-120

20

-20

120

Answer explanation

-5y - 180 = 60 - (-7y)

-5y - 7y = 60 + 180

-12y = 240

y = 240/-12

y = -20

Tags

CCSS.8.EE.C.7B

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

niali x pada persamaan

2 (x + 7) = x - 8 adalah

-22

22

-22/3

22/3

Answer explanation

2 (x + 7) = x - 8

2x + 14 = x - 8

2x - x = -8 - 14

x = -22

Tags

CCSS.8.EE.C.7B

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2x - 4 = 10

2x - 4 - 4 = 10 - 4

2x = 6

x = 3

langkah dan jawaban soal di atas salah. tentukan jawaban yang benar dari soal tersebut !

2

4

6

7

Answer explanation

2x - 4 = 10

2x = 10 + 4

2x = 14

x = 7

Tags

CCSS.8.EE.C.7B

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

manakah yang merupakan persamaan linear satu variabel

3x - 2y = 6

4m + 3 < 15

x2 = 49

5y - 3 = 2y + 9

Tags

CCSS.8.EE.C.7B

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

tentukan penyelesaian dari 2x + 8 = 20

2

6

8

10

Answer explanation

2x + 8 = 20

2x = 20 - 8

2x = 12

x = 12/2

x = 6

Tags

CCSS.7.EE.B.4A

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

nilai p yang memenuhi persamaan 3p - 4 = p + 8 adalah

12

-6

6

-12

Answer explanation

3p - 4 = p + 8

3p - p = 8 + 4

2p = 12

p = 12/2

p = 6

Tags

CCSS.7.EE.B.4A

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