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

Toán Lớp 7: 3 . ( x – 1/2 ) – 5( x + 3/5 ) = -x + 1/5

Home/ Toán Lớp 7: 3 . ( x – 1/2 ) – 5( x + 3/5 ) = -x + 1/5

Toán Lớp 7: 3 . ( x – 1/2 ) – 5( x + 3/5 ) = -x + 1/5

Tháng Chín 5, 2022 Toán học 2 Comments 0 views

Toán Lớp 7: 3 . ( x – 1/2 ) – 5( x + 3/5 ) = -x + 1/5

Comments ( 2 )

  1. tonhu12
    tonhu12
    5 Tháng Chín, 2022 at 1:05 chiều
    Reply
    3.(x – 1/2) – 5(x + 3/5) = -x + 1/5
    3x – 3/2 – (5x + 3) = -x + 1/5
    3x – 3/2 – 5x – 3 = -x + 1/5
    (3x – 5x) + (-3/2 – 3) = -x + 1/5
    -2x + -9/2 = -1x + 1/5
    -1x – -2x = -9/2 – 1/5
    1x = -47/10
    x = -47/10

  2. truonganhthi
    truonganhthi
    5 Tháng Chín, 2022 at 1:05 chiều
    Reply
    ~ Bạn tham khảo ~
    3(x-1/2) – 5(x+3/5) = -x+1/5
    3x – 3/2 – 5x – 3 = -x+1/5
    3x – 5x+x = 3/2 + 3 +1/5
    -1x =47/10
    x = 47/10 : -1
    x = -47/10
    Vậy x = -47/10
    $#Vịt vàng$

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

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