Higher
Solve linear simultaneous equations where you need to first rearrange
Higher
Solve linear simultaneous equations where you need to first rearrange
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Lesson details
Key learning points
- 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.
p = 1 and q = 2
p = 3 and q = 5
p = 5 and q = 3
Q2.
2 and 6
5 and 4
9 and 12
Q3.
A
C
D
3 Questions
Q1.
He had used subtraction in instead of addition
He has multiplied by 4
He should subtract 1 first
Q2.
A
B
D
Q3.
3. Solve this pair of equations 7e - f + 23 = 0 and e + 2f – 1 = 0
e = 15 and f = 7
e = 2 and f = -2
e = 2 and f = -3