Tìm X Thuộc Z Biết - Giải Bài Tập Toán Học Lớp 6 - Lazi

1. Tìm x thuộc Z biết :

1) x – 2 = –6

2) –5x – (–3) = 13

3) 15– ( x –7 ) = – 21

4) 3x + 17 = 2

5) 45 – ( x– 9) = –35

6) –7x – (–9) = 30

7) x + (-3) = -11

8) –8x – (–11) = 43

9) 82 – (15 + x) = 72

10) (–5) + x = 15

11) 2x – (–17) = 15

12) |x – 2| = 3.

13) | x – 3| –7 = 13

14) 72 –3.|x + 1| = 9

15) 17 – (43 – ) = 45

16) | x +9| –7 = 12

17) 3| x – 1| – 5 = 7

18) 2x + 11 = 3(x – 9)

19) –15(x – 2) + 7(3 – x) = 7

20) –12(x - 5) + 7(3 - x) = 5

21) (x – 2).(x + 4) = 0

22) (x –2).( x + 15) = 0

23) (7–x).( x + 19) = 0

24) -5< x <1

25) |x|<3

26) (x – 3)(x – 5) < 0

27) (x –5)(x–7) < 0

28) 2x2 – 3 = 29

29) –6x – (–7) = 25

30) 46 – ( x –11 ) = – 48

31) | x – 12| – 11 = 9

32) 56 – ( x –13 ) = –58

33) | x + 19| + 24 = 23

34) (x –11).( x + 5) = 0

35) 23 (67 x) = 34

36) |x +1| – 5 = 10

37) – 7 + 2x = – 37 – (– 26)

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