Các câu hỏi tương tự
tim so nguyen x
(3x - 25) - (x - 9) = 2 - x
2x + (-73 - 120) - (20 - 120) = 5
BT1:tinh nhanh
A=(-3879-3879-3879-3879)*-25
BT2:so sanh 2 bieu thuc
C=5*73*-8*-9*-679*11*-1
D=-2*3942*598*-3*-7*87623
BT3:TIM SO NGUYEN X BIET
a)3x+2chia het cho x-1
b)xbinh phuong +2x-7 chia het cho x+2
c)2x chia het cho x-1
Tìm x
a. 126 - 2x = 12 - ( -28 )
b. 25 - 5 ( x+1) = 30 - 125
cc. | 3x - 1| - 25 = 73
d . 2( x+ 2 ) - 6 = 120 - 4x
tim so nguyen x
(3x+9).(3x-6)=0(2x+15)-25=47-(10-x)30(x=2)-6(x-5)-24x=100/4-3x/=8/2x-5/=13/7x+3/=66
19 tháng 10 2023 lúc 21:49
1.
a) 2x + 5 = 34 : 32
b) ( 3x - 24 ) . 73 = 2.74
c) [ 3 . ( 42 - x ) + 15 = 23 . 3
d) 126 + ( 132 - x ) = 300
2.
a) 120 - ( x + 55 ) = 60
b) ( 7x - 11)3 = 25 .52 + 200
c) 2x + 2x+4 = 544
3.
a) 10 + 2x = 49 : 47
b) 70 - 5 ( x - 3 ) = 45
c) 4 + 95 : x = 143 : 142 - 23
tim so nguyen x bt
25 – 2x = 16 – 3x
d) x – (47 – 22) = 5+ (10 – 4x) ai giup mik vs
bai 1:tim so nguyen x sao cho gia cua cac phan so la so nguyen
a)x+3/x-2
b)x2+3x-2/x+2
chu y:dau / la dau chia trong phan so
bai 2:cho A=2n+1/n-2 voi n la so nguyen
a)tim n de a la phan so
b)tim n de A nguyen
c)tinh gia tri cua A biet:n=2;1;-2;-1
giup minh voi minh dang can.Ai dung minh tick cho
126-2 . (x-1) = 20
120+3. (x-3)=180
(x-1).(5-x)=0
(2x-4).(3x)=0
(3x-9).(10-2x)=0
Giúp e với ạ
1) 1230 : 3(x - 20) = 10
2) [(52.23) – 72.2) : 2].6 – 7.25
3) 2x+1 - 2x = 32
4) 120 + 2.(3x - 17) = 214
5) 25< 2x< 3125