Matematika

Pertanyaan

nomer 1 dan 2 tolong di jawap
nomer 1 dan 2 tolong di jawap

1 Jawaban

  • 1a. 7/5-√11 = 5+√11/5+√11
    = 35+7√11/ 14
    = 5+√11/2
    b. 3+√2/√7-3
    = 3√7+√6/7-3
    = 3√7 +√6/4

    2a. 2x-5=7x+10
    2x-7x=10+5
    -6x= 15
    x = -5/2

    b. 3x+4/5 = 7x-8/3
    = (dikali silang)
    = 9x+12=35x-40
    = 9x-35x = -40-12
    = -26x = -52
    = x = -52/-26
    = x = 2