Matematika persamaan nilai mutlak1) l-3l+l-5-5l=2) -5 l-2+4l=3) l3-9l+l-7-1l=4) l-4x+3l=45) lx-7l<10​

elizakossulv – April 06, 2023

persamaan nilai mutlak
1) l-3l+l-5-5l=
2) -5 l-2+4l=
3) l3-9l+l-7-1l=
4) l-4x+3l=4
5) lx-7l<10​

Jawaban:

1. 13

2. -3

3. 14

4. x = -1/4 atau x = 7/4

5. x < 17 atau x > -3

Penjelasan dengan langkah-langkah:

1. |3|+|-5-5| = 3+|-10| = 3+10 = 13

2. -5+|-2+4| = -5+|2| = -5+2 = -3

3. |3-9|+|-7-1| = |-6|+|-8| = 6+8 = 14

4. |-4x+3| = 4

1) -4x+3 = 4

-4x = 4-3

-4x = 1

x = -1/4

2) 4x-3 = 4

4x = 4+3

x = 7/4

5. |x-7| < 10

1) x-7 < 10

x < 10+7

x < 17

2) -x+7 < 10

-x < 10-7

-x < 3

x > -3

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