Chapter 2: Linear Equations in One Variable

Q1Written answer

x – 2 = 7

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Worked solution

x – 2 = 7

x=7+2

x = 9

Q2Written answer

y + 3 = 10

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Worked solution

y + 3 = 10

y = 10 –3

y = 7

Q3Written answer

6 = z + 2

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Worked solution

6 = z + 2

z + 2 = 6

z = 6-2

z = 4

Q4Written answer

3/7 + x = 17/7

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Worked solution

3/7 + x = 17/7

x = 17/7 – 3/7

x = 14/7

x = 2

Q5Written answer

6x = 12

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Worked solution

6x = 12

x = 12/6

x = 2

Q6Written answer

t/5 = 10

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Worked solution

t/5 = 10

t = 10 × 5

t = 50

Q7Written answer

2x/3 = 18

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Worked solution

2x/3 = 18

2x = 18 × 3

2x = 54

x = 54/2

x = 27

Q8Written answer

1.6 = y/15

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Worked solution

1.6 = y/1.5

y/1.5 = 1.6

y = 1.6 × 1.5

y = 2.4

Q9Written answer

7x – 9 = 16

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Worked solution

7x – 9 = 16

7x = 16+9

7x = 25

x = 25/7

Q10Written answer

14y – 8 = 13

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Worked solution

14y – 8 = 13

14y = 13+8

14y = 21

y = 21/14

y = 3/2