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Jawaban:

1. |2x – 5| = 3

2x = 3 + 5

2x = 8

x = 4

2. |x + 1| = 4

x = 4 – 1

x = 3

3. |x + 5| = –6

x = –6 –5

x = –11

4. |x – 7| = 3

x = 3 + 7

x = 10

Jawaban:

1. x1=1 x2=4

2. x1= -5 x2=3

3. 0

4. x1=4 x2=10