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F.2 5.2A Solving Simultaneous Equations

Authored by Kin Bon Poon

Mathematics

8th Grade

CCSS covered

Used 43+ times

F.2 5.2A Solving Simultaneous Equations
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17 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


 x+3=10x+3=10  

then  x=x=  

7

8

13

14

Tags

CCSS.6.EE.B.7

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


 x+3=10x+3=10  ,
 x+y=15x+y=15  
then  y=y=  

7

8

13

14

Answer explanation

由 x + 3 = 10,得 x = 7
7 + y = 15,得 y = 8

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


 x3=18x-3=18  ,
 x+y=16x+y=16  
then  x=x=  

15

16

19

21

Answer explanation

由 x - 3 = 18,得 x = 21
暫時不必理會下一條式,下一題才使用

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


 x3=18x-3=18  ,
 x+y=16x+y=16  
then  y=y= 

5

-5

37

-37

Answer explanation

由 x - 3 = 18,得 x = 21
第二式:21 + y = 16,得 y = -5

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


 2x3=192x-3=19  
 x3y=17x-3y=17  
then  x=x=  

-11

-8

8

11

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


2x3=192x-3=19
x3y=17x-3y=17
then y=y=

2

-2

3

-3

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


 52y=175-2y=17 
x3y=17x-3y=17
then y=y=

6

-6

11

-11

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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