AnswersAG Q3 Math 8 25-26 JTurnerUsing Addition to Solve Systems

Using Addition to Solve Systems Answers

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1
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What is the solution to this system of equations?

Question illustration
A
(3, Negative 5 and one-half)
Option A
B
(3, one-half)
Option B
C
no solution
D
infinitely many solutions
2
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Which equation results from adding the equations in this system?

Question illustration
A
7 x = 13
Option A
B
7 x = 3
Option B
C
3 x = 3
Option C
D
3 x = 13
Option D
3

Which values for A and B will create infinitely many solutions for this system of equations?

Question illustration
A
,
Option A
B
,
Option B
C
,
Option C
D
,
Option D
4

Which equation results from adding the equations in this system?

Question illustration
A
5 x = negative 10
Option A
B
5 x = 26
Option B
C
Negative 5 x = 26
Option C
D
Negative 5 x = negative 10
Option D
5

Which equation results from adding the equations in this system?

Question illustration
A
Negative 7 x = negative 35
Option A
B
Negative 7 x = 35
Option B
C
7 x = negative 35
Option C
D
7 x = 35
Option D
6

Which values for A and B will create infinitely many solutions for this system of equations?

Question illustration
A
,
Option A
B
,
Option B
C
,
Option C
D
,
Option D
7

Petro was given this system of equations. Petro’s work is shown in the table. Where, if anywhere, did Petro first make a mistake? StepsPetro’s WorkStep 1Step 2Step 3

Question illustration
A
step 1
B
step 2
C
step 3
D
no mistake
8

What is the solution to this system of equations?

Question illustration
A
(4, negative one-fourth)
Option A
B
(4, negative StartFraction 9 Over 16 EndFraction)
Option B
C
no solution
D
infinitely many solutions
9

Use the linear combination method to solve this system of equations. What is the value of x?

Question illustration
A
Negative 1
Option A
B
0
C
1
D
4.8
Option D
10

Which system of equations has infinitely many solutions?

A
4 x + 2 y = 5. Negative 4 x minus 2 y = 1.
Option A
B
Negative 10 x + y = 4. 10 x minus y = negative 4.
Option B
C
Negative 8 x + y = 2. 8 x minus y = 0.
Option C
D
Negative x + 2 y = 6. 7 x minus 2 y = 12.
Option D

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