Matematika

Pertanyaan

a.) 4(2x-3)-14=-6
b.) (5x+3)=(2x)
c.) (x-3)=(3-2x)

1 Jawaban

  • a.) 4(2x-3)-14=-6
    = 8x - 12 - 14 = -6
    =8x = -6 +12 +14
    =8x = 20
    = x = 20/8
    = x = 2,5
    b.) (5x+3)=(2x)
    = 5x + 3 = 2x
    = 5x - 2x = -3
    = 3x = -3
    = x = -3/3
    = x = -1
    c.) (x-3)=(3-2x)
    = x -3 = 3 - 2x
    = x + 2x = 3+3
    = -x = 6

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