2448 - 5.x - 148= 2000
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Câu b,
= 50x + (1 + 3 + 5 + ..... + 99) = 2550
= 50x + 2500 = 2550
= 50x = 2550 - 2500
= 50x = 50
= x = 50 : 50
= x = 1
3x-2-19=62
=> 3x-2=62+19
=> 3x-2=81
=> 3x-2=34
=> x-2=4
=> x=4+2
=> x=6
10.3x=3117+3115
=> 10.3x=3115.(32+1)
=> 10.3x=3115.(9+1)
=> 3x.10=3115.10
=> 3x=3115
=> x=115
2448-(5x+48)=2000
=> 5x+48=2448-2000
=> 5x+48=448
=> 5x=448-48
=> 5x=400
=> x=400:5
=> x=80
1)\(3^{x-2}=62+19=81=3^4\)
=> x- 2 = 4
=> x = 6
2) \(2448-\left(5x+48\right)=2000\)
5x + 48 = 448
5x = 448 - 48
5x = 400
x = 80
3) \(10.3^x=3^{115}\left(3^2+1\right)=3^{115}.10\)
=> x =115
`2448:[119-(x-6)]=24`
`=>119-(x-6)= 2448 : 24`
`=>119-(x-6)= 102`
`=> x-6=119-102`
`=> x-6=17`
`=>x=17+6`
`=>x=23`
`2448:[119-(x-6)]=24`
`=>119-(x-6)= 2448 : 24`
`=>119-(x-6)= 102`
`=> x-6=119-102`
`=> x-6=17`
`=>x=17+6`
`=>x=23`
a) (x+12)-20=0
x+12=20
x=8
b) 5.(x-7)=0
x-7=0
x=7
c) 12x-3x+1=937
12x-3x=936
9x=936
x=104
d) 2448 : [ 119 - ( x - 6 ) ] = 24
119-(x-6) = 102
x-6=17
x=23
a ) ( x + 12 ) - 20 = 0
x + 12 = 0 + 20
x +12 = 20
x = 20 - 12
x = 8
b ) 5 . ( x - 7 ) =0
x - 7 = 0 : 5
x - 7 = 0
x = 0 + 7
x = 7
2448:[119-[x-6]]=24
<=> 199 - ( x-6 ) = 2448 : 24 = 102
<=> x - 6 = 199 - 102 = 97
<=> x = 97 +6 = 103
Trả lời
2448-5x-148=2000
2448-5x =2000+148
2448-5x =2148
5x =2448-2148
5x =300
x =300:5
x =60
Rất vui khi đc giúp bn !
2448 - 5.x - 148 = 2000
2448 - 5.x = 2000 + 148
2448 - 5.x = 2148
5.x = 2448 - 2148
5.x = 2300
x = 2300 ÷ 5
x = 460
Vậy,...
Cbht