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Test: Simplifying expressions - Year 7 MCQ


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10 Questions MCQ Test - Test: Simplifying expressions

Test: Simplifying expressions for Year 7 2024 is part of Year 7 preparation. The Test: Simplifying expressions questions and answers have been prepared according to the Year 7 exam syllabus.The Test: Simplifying expressions MCQs are made for Year 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Simplifying expressions below.
Solutions of Test: Simplifying expressions questions in English are available as part of our course for Year 7 & Test: Simplifying expressions solutions in Hindi for Year 7 course. Download more important topics, notes, lectures and mock test series for Year 7 Exam by signing up for free. Attempt Test: Simplifying expressions | 10 questions in 20 minutes | Mock test for Year 7 preparation | Free important questions MCQ to study for Year 7 Exam | Download free PDF with solutions
Test: Simplifying expressions - Question 1
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If I have x rabbits and you have twice as many, how many rabbits have you got?

Detailed Solution for Test: Simplifying expressions - Question 1
You have two times the number that I have got and 2 times x is the same as 2x
Test: Simplifying expressions - Question 2
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Suzie is x years old and she has a sister called Rosie who is four years older. Rosie's mother was 28 when Rosie was born. How old is Rosie's mother now?

Detailed Solution for Test: Simplifying expressions - Question 2

If you got the answer wrong then think carefully through each aspect of the question. Rosie's mother was 28 when Rosie was born. 4 years later, Suzie was born. Suzie is now x years old so Rosie's mother's age is now 28 + 4 + x = 32 + x

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Test: Simplifying expressions - Question 3
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Peter has x brothers, Paul has y brothers and Graham has z brothers. Between the three boys, how many brothers have they got?

Detailed Solution for Test: Simplifying expressions - Question 3
Don't get baffled by complicated wording - often the answer is easier than you think
Test: Simplifying expressions - Question 4
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In an algebraic expression letters are often used to represent what?
Detailed Solution for Test: Simplifying expressions - Question 4
A letter can be used in place of any number - especially if the number has not yet been worked out
Test: Simplifying expressions - Question 5
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Simplify 3x + 4x − 2x.
Detailed Solution for Test: Simplifying expressions - Question 5

Combine like terms: 3x + 4x − 2x = (3 + 4 − 2) x = 5x.

Test: Simplifying expressions - Question 6
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Solve for x: 4x + 5 = 17.
Detailed Solution for Test: Simplifying expressions - Question 6

Subtract 5 from both sides: 4x = 12. Divide both sides by 4: x = 3.

Test: Simplifying expressions - Question 7
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Find the area A of a circle with radius r = 3, using A = πr2.
Detailed Solution for Test: Simplifying expressions - Question 7

Substituter = 3 into the formula: A = π⋅3 2 = 9π.

Test: Simplifying expressions - Question 8
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What is the simplification of 3a + 4b + 6c + 3a - 6c - a - 3b?
Detailed Solution for Test: Simplifying expressions - Question 8
Be careful to account for all the a's, then all the b's and then all the c's. In this case + 6c and - 6c cancel each other out and therefore they do not appear in the simplification
Test: Simplifying expressions - Question 9
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Simplify 7m + 2n − 3m + 4n.
Test: Simplifying expressions - Question 10
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Simplify 4a + 5a − 2a.
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