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

Toán Lớp 6: ( 3700 + 5300 ) – 5x = 1500 x-3 = 5 mũ 6 : 5 mũ 3 + 2 mũ 3 . 2 mũ 2 [ 2 ( 70 – x ) + 2 mũ 3 . 3 mũ 2 ] = 46 x + ( x + 1 ) + ( x + 2

Home/ Toán Lớp 6: ( 3700 + 5300 ) – 5x = 1500 x-3 = 5 mũ 6 : 5 mũ 3 + 2 mũ 3 . 2 mũ 2 [ 2 ( 70 – x ) + 2 mũ 3 . 3 mũ 2 ] = 46 x + ( x + 1 ) + ( x + 2

Toán Lớp 6: ( 3700 + 5300 ) – 5x = 1500 x-3 = 5 mũ 6 : 5 mũ 3 + 2 mũ 3 . 2 mũ 2 [ 2 ( 70 – x ) + 2 mũ 3 . 3 mũ 2 ] = 46 x + ( x + 1 ) + ( x + 2

Tháng Mười 27, 2022 Toán học 1 Comment 0 views

Toán Lớp 6: ( 3700 + 5300 ) – 5x = 1500
x-3 = 5 mũ 6 : 5 mũ 3 + 2 mũ 3 . 2 mũ 2
[ 2 ( 70 – x ) + 2 mũ 3 . 3 mũ 2 ] = 46
x + ( x + 1 ) + ( x + 2 ) +……..+ (x + 30 ) = 1240
Tìm x

Comments ( 1 )

  1. maianh67
    maianh67
    27 Tháng Mười, 2022 at 3:52 chiều
    Reply
    ( 3700 + 5300 ) – 5x = 1500
    =>9000- 5x = 1500
    =>5x = 9000 – 1500
    =>5x= 7500
    =>x = 7500 ÷ 5
    =>X = 1500
    x-3=5^6÷5^3+2^3×2^2
    =>x-3=5^(6-3)+2^(3+2)
    =>x-3=5^3+2^5
    =>x-3=125+32
    =>x-3=157
    =>x = 157 +3
    =>x= 160
    [ 2 ( 70 – x ) + 2^ 3 . 3 ^ 2 ] = 46
    =>[ 2 ( 70 – x ) + 8 . 9 ] = 46
    =>2 . ( 70 – x)+ 72 = 76 
    =>2 . (70 -x ) = 76 – 72
    => 2 . (70 – x ) =4
    =>70 – x = 4 ÷ 2
    => 70 – x = 2
    => x = 70 – 2 
    => x = 68
    x + ( x + 1 ) + ( x + 2 ) +……..+ (x + 30 ) = 1240
    =>x × 31 +(1+2+3+4+5+..+30)=1240
    =>X×31 +(30 × 31 ÷2 ) =1240
    =>X × 31 + 15 ×31 = 1240
    =>x × 31 +  465 = 1240
    =>x × 31 = 1240 – 465
    =>x × 31 = 775
    => x = 775 ÷ 31
    => x = 25

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

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