Question 4(a)
Construct 3 equations starting with x=2

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Solution

3 equations starting with x=2
(i) x= 2
Multiplying both sides by 10,10x=20
Adding 2 both sides, 10x+2=20+2=10x+2=22
(ii) x=2
Multiplying both sides by 5,5x = 10
Subtracting 3 from both sides,5x-3=10-3=5x-3=7
(iii) x = 2
Dividing both sides by 5, $\frac{x}{5} = \frac{2}{5}$

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Question 14

Which of the following equations can be formed starting with x = 0?

(a) 2x + 1 = -1

(b) $\frac{x}{2} + 5 = 7$

(d) 3x - 1 = 1

x = 0

(a) Construct 3 equations starting with x = 2

(b) Construct 3 equations starting with x = − 2

x^{3} - 4 x^{2} - x + 1 = (x - 2)^{3}

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