Substitution Review

Solve for x and y using the substitution method. 5x + 3y = 7 y = 4

• (4,1)

• (4,-1)

• (1,4)

• (-1,4)

If x = -3, in the equation -2x + y = 15, what is y? Type in the number.

Solve the following system of equations: 5x - 4y = 3 and 2x + 3y = 8

• x = 4, y = 3

• x = 2, y = 1

• x = 3, y = 2

• x = 1, y = 5

What is the solution to this system?
y= 4x + 3
2x - 3y = 21

• (3,-9)

• (-3,-9)

• (-3,9)

• (0,1)

y = -6
-3x - 6y = 24

• (6, 6)

• (6, -6)

• (4, -6)

• (-6, 4)

If y=4,find the value of y+5

• 27

• 12

• 9

If x=5,find the value of 7x-1

• 34

• 36

• 35

Solve 2(y + 2)
if y = 5

• 32

• 14

• 67

• 8

Solve:
3x + 5
if x = 4

• 39

• 17

• 12

• 8

Solve
20 - 2n
if n = 3 

• 14

• 54

• -3