Linguagem algébrica

Linguagem algébrica



  • Ol!
    1)
    2x — 3/5 = 7
    2x = 7 + 3/5
    2x = 38/5
    x = 19/5

    2)
    x — 12 = 18
    x = 18+12
    x = 30

    3)
    4x — 5 = 31
    4x = 31 + 5
    4x = 36
    x = 36/4
    x = 9

    4)
    2x + x = 24
    3x = 24
    x = 24/3
    x = 8

    5)
    3x — 18 = x
    3x — x =18
    2x = 18
    x = 9

    6)
    x + 15 = 29
    x = 29 — 15
    x = 14

    7)
    x — 32 = 18
    x = 18 + 32
    x = 50

    8)
    2x + 10 = 20
    2x = 20 — 10
    2x = 10
    x = 10/2
    x = 5

    9)
    x — 23 = 40
    x = 40 + 23
    x = 63

    10)
    2x + 5 = 91
    2x = 91 — 5
    2x = 86
    x = 86/2
    x = 43

    Ufa terminei, acho que mereo uma melhor resposta hein, rsrs. Bons estudos!

  • 1) 2x — 3/5x = 7
    10x — 3x = 35
    5 5
    7x = 35
    x = 35/5
    x = 7

    2) x — 12 = 18
    x = 18 + 12
    x = 30

    3) 4x — 5 = 31
    4x = 31 + 5
    4x = 36
    x= 36/4
    x = 9

    4) 2x + x = 24
    3x = 24
    x = 24/3
    x = 8
    5) 3x — 18 = x
    3x — x = 18
    2x = 18
    x = 18/2
    x = 9

    6) x + 15 = 29
    x = 29 — 15
    x = 14

    7) x — 32 = 18
    x = 18 + 32
    x = 50

    8) 2x + 10 = 20
    2x = 20 — 10
    2x = 10
    x = 10/2
    x = 5

    9) x — 23 = 40
    x = 40 + 23
    x = 63

    10) 2x + 5 = 91
    2x = 91 — 5
    2x = 86
    x = 86/2
    x = 43


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21 + = 29