Vì x :10; x :12; x : 15 \(\Rightarrow\)x\(\in\) BC(10;12;15)
Ta có:
10=2.5
12=22.3
15=3.5
BCNN(10;12;15)=22.3.5=60
BC(10;12;15)=B(60)={0;60;120;180;...}
Vì 100<x<150
\(\Rightarrow\)x=120
Tim so tu nhien x biet rang 493 chia het cho x va 10<x<100. (Ccac ban tra loi chi tiet luon nha. Minh dang can lam lam. Cam on cac ban nhieu)
cau b -8 chia het x va 12 chia het x
cau c x chia het4 , x chia het -6 va -20 <x<-10
ai giup minh thi lam nhanh nha minh cam on truoc
a. x \(\div\)( 1/1*3 + 1/3*5 + ...... + 1/101*103 ) =1 .
b.( 1/1*2 + 1/2*3 + 1/3*4 + ........ + 1/11*12) * x =2
c. x : 3/4 = 2x * 7/3 +5
Cac ban giai theo dang tim x nha . Cam on nhieu. Nhanh nhe vi minh can gap
Bai 1. 12 chia het ( x + 3 )
bai 2. Tim so tu nhien x, biet 6x + 4 chia het cho 2x
cac ban nho giai chi tiet giup minh nha cam on
tim x biet : (11/12+11/12.23+11/23.24+...+11/89.100) + x = 2/3
giup minh voi minh dang can gap xin cam on nhieu
Tim x c N biet:
a, 48 chia het cho x ; 150 chia het cho x ; 300 chia het cho x va 4 < x < 12
b, 140 + 3 ( x - 7 ) = 155
c/ x chia het cho 12; x chia het cho 18 va 60< x < 150
d/ 3x2 - 15 = 22 . 3
e/ 2x +3 + 2x + 2 = 96 . 170
GIUP MINH VOI NHA ! CAM ON TRUOC
3x+2-5.3x=36
tim x
giup minh vo cac ban minh dang can gap nha
cam on cac ban nhieu
Tim x biet : |x-3|=x=-5
giup minh nhe minh se cam on va hau ta
Tim x, y va z, biet :
a) x/2 = y/3 = z/4 va x + y + z =18.
b) x/5 = y/-6 = z/7 va x + y - z =32.
c) x/5 = y/3 = z/2 va 2x + 3y + 4z =54.
d) x/2 = y/3 = z/6 va 3x - 2y + 2z = 24.
Ai biet thi chi giup minh nha. Cang nhanh cang tot ! Minh xin cam on.
