Equations and Solutions

Determine if (4, 1) is a solution for the system of equations.
y = -x + 5
y = 2x - 7

• yes

• no

Solve the system of equations by elimination.
-x + y = -13
-8x - 4y = -8 

• (5, 8)

• (5, -8)

• (-5, -18)

• (-5, 8)

Solve the system by elimination. 
−4x − 4y = 0
4x + 4y = 0 

• (−6, −4) 

• Infinite number of solutions  

• (−6, 10) 

• (6, 4) 

Solve the system of equations by substitution.
y = -4x + 5
y =  3x - 16

• (-3, -25)

• (3,-7)

• (11, 17)

• (21, 47)

Solve for x and y.
y = 2/3x - 2
y = -x + 3

• (0,3)

• (0,-3)

• (3,0)

• (-3,0)

Use mental math. What is the solution?

b + 5=10

• b = 10

• b = 100000000

• b = 5

• b = 0

Determine if the variable is a solution or not.

4b = 4 for b = 0

• Solution

• Not a Solution

Use mental math. What is the solution?

k - 1 = 5

• k = 4

• k = 6

• k = 5

• k = you are an imposter

Determine if the variable is a solution or not.

h - 8 = 2 for h = 10

• Solution

• Not a Solution

Determine if the variable is a solution or not.

2j = 12 for j=4

• Solution

• Not a Solution