Year 10
Core

Solve linear simultaneous equations where you need to first rearrange

Year 10
Core

Solve linear simultaneous equations where you need to first rearrange

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Lesson details

Key learning points

  1. In this lesson, we will investigate how to solve simultaneous equation cases where we need to rearrange equations first, followed by using multiplication to ensure coefficients in one equation are factors or multiples of the other.

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3 Questions

Q1.
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p = 1 and q = 2
Correct answer: p = 2 and q = 1
p = 3 and q = 5
p = 5 and q = 3
Q2.
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2 and 6
Correct answer: 3 and 4
5 and 4
9 and 12
Q3.
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A
Correct answer: B
C
D

3 Questions

Q1.
An image in a quiz
He had used subtraction in instead of addition
He has multiplied by 4
Correct answer: He needs to multiply everything on the right-hand side by 3
He should subtract 1 first
Q2.
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A
B
Correct answer: C
D
Q3.
3. Solve this pair of equations 7e - f + 23 = 0 and e + 2f – 1 = 0
Correct answer: e = -3 and f = 2
e = 15 and f = 7
e = 2 and f = -2
e = 2 and f = -3