Mastering Substitution
Mathematics
Grade 7
13 questions
~26 mins
0 views0 downloads
About This Worksheet
A worksheet covering Substitution for Grade 7 students. It includes basic exercises and real-world problems to deepen understanding.
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Mastering Substitution
Subject: MathematicsGrade: Grade 7
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Date:
Untitled Worksheet
Grade Grade 7
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Evaluate the expression 3x + 5 when x = 4.
[2 marks]2.
Find the value of y if y = 2a + 3 and a = 7.
[2 marks]3.
Calculate the value of 5m - 2 when m = 6.
[2 marks]4.
Determine the value of z if z = 4p + 1 and p = 3.
[2 marks]5.
If x = 5, find the value of 2(x + 3).
[2 marks]6.
Evaluate the expression 7k - 4 when k = 8.
[2 marks]7.
Find the value of m if m = 3n + 2 and n = 4.
[2 marks]8.
Calculate the value of 6a - 5 when a = 2.
[2 marks]9.
A rectangle's length is 3x + 2 and width is x + 4. If x = 2, find the area.
[3 marks]10.
A car rental cost is given by 50 + 10d, where d is the number of days. How much would it cost for 7 days?
[3 marks]11.
If the total cost C = 20x + 15, find x when C = 95.
[3 marks]12.
Challenge: A farmer has 4 times as many chickens as cows. If the number of cows is represented by c, express the total number of animals in terms of c and evaluate when c = 5.
[4 marks]13.
Real-world: A mobile plan costs $30 plus $0.10 per minute used. If a person used 250 minutes, what is the total cost? Show your working.
[4 marks]Quick Actions
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- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet