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Worksheets

SOLVING SYSTEMS USING SUBSTITUTION

Total questions: 14

Worksheet time: 1hrs 6mins

Name
Class
Date
1.

Solve the following systems of equations using substitution:


5x - 2y = 3

y = 2x

a)

(6, 3)

b)

(1, 2)

c)

(3, 6)

d)

(2, 1)

2.

Solve the following systems of equations using substitution:


y = 3 - x

3y + x = 5

a)

No solution

b)

(1, 2)

c)

(3, 0)

d)

(2, 1)

3.

Solve the system of equations.

a)

(-6, 1)

b)

(-12, -12)

c)

(1, -6)

d)

No solution

e)

Infinite solutions

4.
Solve:
y=8x+1
y=6x+3
a)
(1, 9)
b)
(4, 14)
c)
(0, 1)
d)
(2, 4)
5.
What is the solution to this system?
2x + 3y = 4
y= 5x - 27
a)
(5,-2)
b)
(5, 2)
c)
(2,3)
d)
(3,2)
6.

Solve this system using substitution

y = 3x - 5

2x + 4y = -6

a)

(1, -2)

b)

(2, -2)

c)

(1, 2)

d)

Why have you done this?

7.
Solve each system using substitution:
y = 4x - 3
y = 2x + 13
a)
( 8 , 29)
b)
( 7 , 28)
c)
( - 1, -4)
d)
(3, 0)
8.
What is the solution of the graph.
a)
One Solution ( 1,2)
b)
One Solution (-1,0)
c)
No Solution
d)
Infinitely Many Solutions
9.

Solve the following systems of equations using substitution:


2y + x = -15

x = 3y

a)

(-3, -9)

b)

(-9, -3)

c)

(-3, 9)

d)

(9, -3)

10.

Find the solution of the system of equations below using the substitution method:


y = 2x - 4


7x - 2y = 5

a)

(-1, -6)

b)

(-1, -8)

c)

(-2, 6)

d)

(1, -8),

11.
a)

No Solution

b)

(2, 2)

c)

(-1, 2)

d)

(-1, -2)

12.

A young group with 26 members is going to the National Museum. There will also be 5 teachers that will each drive a van or a car. Each van seats 7 people, including the driver. Each car seats 5 people, including the driver. How many cars and vans will be needed?

a)

2 vans and 3 cars

b)

2 cars and 3 vans

c)

3 cars and 3 vans

d)

1 van and 4 cars

13.

A rectangle is 3 times longer than it is wide. The perimeter is 44 cm. Write a system of equations and find the dimensions of the rectangle

a)

L + W = 44, 3W = L; 5cm by 16cm.

b)

2L - 2W = 44, 3W = L; 5.5cm by 16.5 cm.

c)

L + 3W = 44, 3W = L; 5 cm by 16 cm.

d)

2L + 2W = 44, 3W = L; 5.5cm by 16.5 cm.

14.

Write and solve the system of equations.

Simon grows only orange trees and lemon trees on her 420-acre farm. This year he wants to plant 250 more acres of lemon trees than of orange trees. How many acres of each crop does Simon need to plant? let x= orange tree and y= lemon tree.

a)


x+y = 420, y=x+250; x+y\ =\ 420,\ y=x+250;\ 85 acres of orange trees and 335 acres of lemon trees.

b)

x+y=250, y=x−420; x+y=250,\ y=x-420;\ 335 acres of orange trees and 85 acres of lemon trees.

c)

x−y=420, x=y+250;x-y=420,\ x=y+250; 85 acres of orange trees and 335 acres of lemon trees.

d)

x+y=420, y=x+250;x+y=420,\ y=x+250; 335 acres of orange trees and 85 acres of lemon trees.