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

Toán Lớp 6: bài 1 : Tìm x a) 5 + ( x + 27 ) = 64 f) 49 – ( 15 + x ) = 12 b) 64 – ( x – 2 ) = 25 g) 49 – 7. ( 13 – x

Home/ Toán Lớp 6: bài 1 : Tìm x a) 5 + ( x + 27 ) = 64 f) 49 – ( 15 + x ) = 12 b) 64 – ( x – 2 ) = 25 g) 49 – 7. ( 13 – x

Toán Lớp 6: bài 1 : Tìm x a) 5 + ( x + 27 ) = 64 f) 49 – ( 15 + x ) = 12 b) 64 – ( x – 2 ) = 25 g) 49 – 7. ( 13 – x

Tháng Tám 25, 2022 Toán học 1 Comment 0 views

Toán Lớp 6: bài 1 : Tìm x
a) 5 + ( x + 27 ) = 64 f) 49 – ( 15 + x ) = 12
b) 64 – ( x – 2 ) = 25 g) 49 – 7. ( 13 – x ) = 14
c) 7 – ( x + 5 ) + 14 = 343 h) 155 – 10. ( x + 1 ) = 55
d) 5 . x – 25 = 10
e) 4 . ( x – 5 ) – 8 = 48

Comments ( 1 )

  1. huongtructram
    huongtructram
    25 Tháng Tám, 2022 at 5:43 chiều
    Reply
    Bài 1 :
    a ) 5 + ( x + 27 ) = 64
    x + 27 = 64 – 5
    x + 27 =  59
    x =59 – 27
    x=32
    b ) 64 – ( x-2 ) =25
    x-2 = 64 – 25
    x-2 = 39
    x = 39 + 2
    x = 41
    c ) 7 – ( x+ 5 ) + 14 = 343
    x + 5 = 343 -14 + 7
    x + 5 = 336
    x = 336 – 5
    x = 331
    d ) 5 . x-25 = 10
    x – 25 = 10 : 5
    x – 25 = 2
    x = 2 + 25
    x = 27
    e) 4 . ( x-5)-8=48
    x-5 = (48-8):4
    x-5 = 10
    x = 10 + 5
    x= 15
    f) 49 – ( 15 + x ) = 12
    15+x=49-12
    15+x=37
    x=37-15
    x=22
    g) 49 – 7.(13-x)=14
    13-x=(14+49):7
    13-x=9
    x= 13 – 9
    x = 4
    h) 155 – 10 . ( x + 1 ) = 55
    x +1 = ( 55 + 155 ) : 10
    x + 1 = 21
    x= 21 – 1
    x= 20
     

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

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