Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

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

Toán Lớp 7: help a , ( – 5 ) + x = 7 b , 12 + x + ( -5 ) = – 18 c , ( – 14 ) – x + ( -15 ) = – 10 d , x – ( – 19 ) – ( – 11 ) = 0

Toán Lớp 7: help
a , ( – 5 ) + x = 7
b , 12 + x + ( -5 ) = – 18
c , ( – 14 ) – x + ( -15 ) = – 10
d , x – ( – 19 ) – ( – 11 ) = 0

Comments ( 2 )

  1. Giải đáp + Lời giải và giải thích chi tiết:
    a)( – 5 ) + x = 7
    x=7-(-5)
    x=12
    Vậy x=12
    b)12 + x + ( -5 ) = – 18
    12+x=-18-(-5)
    12+x=-13
    x=-13-12
    x=-25
    Vậy x=-25
    c)( – 14 ) – x + ( -15 ) = – 10
    -14-x=-10-(-15)
    -14-x=5
    x=-14-5
    x=-19
    Vậy x=-19
    d) x – ( – 19 ) – ( – 11 ) = 0
    x-(-19)=0+(-11)
    x-(-19)=-11
    x=-11+(-19)
    x=-30
    Vậy x=-30

  2. ~ Bạn tham khảo ~
    a, (-5) + x = 7
    => x = 7 + 5
    => x = 12
    Vậy x=12
    b, 12+x+(-5) = -18
    => 7+x=-18
    => x=-18-7
    => x=-25
    Vậy x=-25
    c, (-14)-x+(-15) = -10
    => -29-x=-10
    =>-29+10=x
    => x= -19
    Vậy x=-19
    d, x-(-19)-(-11)=0
    => x+30=0
    => x=-30
    Vậy x=-30

Leave a reply

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

About Ái Linh