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Penjelasan dengan langkah-langkah:

1. x – 14 = 18

x = 18 + 14

x = 32

2. 2x + 7 = 13

2x = 13 – 7

2x = 6

x = 6 : 2

x = 3

3. 2 – 5x = 12

-5x = 12 – 2

-5x = 10

x = 10 : (-5)

x = -2

4. 3x + 12 = 7x – 8

12 + 8 = 7x – 3x

20 = 4x

20 : 4 = x

5 = x

5. 5(x-4) + 2x = 6(x-3)

5x -20 + 2x = 6x -18

5x + 2x -6x = -18 + 20

-x = -2

x = 2