Question

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Answer 1

a)

x - 2 = -6

x = -6 + 2

x = -4

b)

2x - 3 = 11

2x = 14

x = 14/2

x = 7

c)

2/3x = 4

x = 4/1 ÷ 2/3

x = 4/1 × 3/2

x = 12/2 = 6

d)

2/4x = 3/4

x = 3/4 ÷ 2/4

x = 3/4 × 4/2

x = 12/8 = 3/2

e)

2x + 2/5 = 4 (×5)

2x + 2 = 20

2x = 18

x = 9

f)

6/4 = x + 1

6/4 - 1 = x

1,5 - 1 = x

1/2 = x

g)

6/5 = x+1/2

5 (x + 1) = 6 × 2

5x + 5 = 12

5x = 7

x = 7/5

h)

3/4 = 2x -1/2

4 (2x - 1) = 3 × 2

8x - 4 = 6

8x = 10

x = 10/8 = 5/4