Quiz Practice Systems/Sub

Solve the system of equations.

• (10, 3)

• (6, 3)

• (15, 3)

Solve the system of equations.

• (-6, 30)

• (-2, 10)

• (44, 39)

Solve the system of equations.

• (-34, -17)

• (8, 4)

• (10, 20)

The equations of two lines are:

2x-y=4 and y=-2x+8.

What is the value of x in the solution for this system?

• x=8

• x=3

• x=11

What is the solution to this system?

2x + 3y = 4

y= -2

• (5,-2)

• (5, 2)

• (2,3)

Solve the following system of equations by graphing:

• Infinite solutions

• (2, -2)

• (1, 0)

What is the solution to this system?

x= 1

2x + y = 5

• (-1,4)

• (4,-1)

• (1,3)

Solve:

x = 10

2x + 3y = -7

• (1, -20)

• (3, 0)

• (10 , -9)

Carmen needs to solve the following system using substitution. She asks you if she did the first step correctly. Which one is correct?

 $y=-2x-3$  

 $x+4y=16$  

•  $\left(-2x+3\right)+4y=16$  

•  $x+4\left(x\right)=16$  

•  $x+4\left(-2x-3\right)=16$  

What is the solution?

• (1, -1)

• (-1, 1)

• (0, -2)