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Solve for X in 2x - 4 <= 3x + 2 < 10 − x. Hence represent your solution on a number line

Mathematics

ScanSolve AI Answer

Answer

−6≤x<2-6 \le x < 2

Step-by-step solution

4 steps

Huu hapa ni ufumbuzi wa swali la 5:

Tunahitaji kutatua usawa 2x−4≤3x+2<10−x2x - 4 \le 3x + 2 < 10 - x.
Usawa huu unaweza kugawanywa katika sehemu mbili:

  1. 2x−4≤3x+22x - 4 \le 3x + 2
  2. 3x+2<10−x3x + 2 < 10 - x
  1. Tatua usawa wa kwanza.

    2x−4≤3x+22x - 4 \le 3x + 2

    Toa 2x2x kutoka pande zote mbili:

    −4≤x+2-4 \le x + 2

    Toa 2 kutoka pande zote mbili:

    −4−2≤x-4 - 2 \le x −6≤x-6 \le x

    Hii inamaanisha x≥−6x \ge -6.

  2. Tatua usawa wa pili.

    3x+2<10−x3x + 2 < 10 - x

    Jumlisha xx kwa pande zote mbili:

    3x+x+2<103x + x + 2 < 10 4x+2<104x + 2 < 10

    Toa 2 kutoka pande zote mbili:

    4x<10−24x < 10 - 2 4x<84x < 8

    Gawanya kwa 4:

    x<84x < \frac{8}{4} x<2x < 2
  3. Unganisha suluhisho.

    Tunayo x≥−6x \ge -6 na x<2x < 2.
    Kuunganisha hizi kunatupa masafa ya xx:

    −6≤x<2\boxed{-6 \le x < 2}
  4. Wakilisha suluhisho kwenye mstari wa namba.

    Kwenye mstari wa namba:

    • Weka duara lililojazwa (au nukta iliyotiwa kivuli) kwenye -6, kuashiria kuwa -6 imejumuishwa.
    • Weka duara wazi (au nukta isiyo na kivuli) kwenye 2, kuashiria kuwa 2 haijajumuishwa.
    • Chora mstari unaounganisha duara hizi mbili.
    <--------------------------------------------------------------------->
    ... -8 -7 -6 -5 -4 -3 -2 -1  0  1  2  3  4 ...
              •--------------------o
    
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