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ANSWER ANY THREE QUESTIONS 11. a) Solve the equation: 5(x−3)=3x+9 b) Solve the simultaneous equations: x+y=15, x−y=5

Mathematics

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Hapa kuna suluhisho la swali la 11.a):

a) Tatua mlinganyo:

5(x−3)=3x+95(x-3) = 3x + 9
  1. Panua upande wa kushoto wa mlinganyo.

    5x−15=3x+95x - 15 = 3x + 9
  2. Kusanya vigezo vya xx upande mmoja na nambari zisizobadilika upande mwingine.

    Toa 3x3x kutoka pande zote mbili na ongeza 15 kwa pande zote mbili.

    5x−3x=9+155x - 3x = 9 + 15
  3. Rahisisha pande zote mbili.

    2x=242x = 24
  4. Gawanya pande zote mbili kwa 2 ili kupata thamani ya xx.

    x=242x = \frac{24}{2} x=12x = 12

    Thamani ya xx ni:

    12\boxed{\text{12}}
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