Matematika

Pertanyaan

a. 4-3{x-1)=6x+1
b. 1-{2x-3(5+4x)}=156

1 Jawaban

  • A. 4 - 3x + 1 = 6x + 1
    -3x - 6x = 1 - 4 - 1
    -9x = -4
    x = 4/9

    B. 1 - [2x - 15 - 12x] = 156
    1 - 2x + 15 + 12x = 156
    10 x = 150
    x = 15

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