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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: tìm x a (x+1)-6=14 b 2x+17=27 c 6.(x-14)-4=50 d 48-(x+3^2)=5^3:5 giúp mik với ạ

Toán Lớp 6: tìm x
a (x+1)-6=14
b 2x+17=27
c 6.(x-14)-4=50
d 48-(x+3^2)=5^3:5
giúp mik với ạ

Comments ( 2 )

  1. a, (x+1)-6=14
    x+1=14+6
    x+1=20
    x=20-1
    x=19
    b, 2x+17=27
    2x=27-17
    2x=10
    x=10:2
    x=5
    c, 6,(x-14)-4=54
    6.(x-14)=50+4
    6.(x-14)=54
    x-14=54:6
    x-14=9
    x=14+9
    x=23
    d, 48-(x+3^2)=5^3:5
    48-(x+9)=5^2
    48-(x+9)=25
    x+9=48-25
    x+9=23
    x=23-9
    x=14
     

  2. a) (x+1)-6=14
    ⇔x+1=20
    ⇔x=19
    b)2x+17=27
    ⇔2x=10
    ⇔x=5
    c)6.(x-14)-4=50
    ⇔6.(x-14)=54
    ⇔x-14=9
    ⇔x=23
    d)48-(x+3²)=5³ :5
    ⇔48-(x+9)=5²
    ⇔48-(x+9)=25
    ⇔-(x+9)=25-48
    ⇔-(x+9)=-23
    ⇔x+9=23
    ⇔x=14
    Chúc bn hc tốt
    Xin câu trl hay nhất ạ

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222-9+11+12:2*14+14 = ? ( )