x - 30 : 6 = 8 x 9
x - 5 = 72
x = 72 + 5
x = 77
Vậy x = 77
x - 30 : 6 = 8 x 9
x - 5 = 72
x = 72 + 5
x = 77
Vậy x = 77
tim x thuoc N biet 192 chia het cho x , 480 chia het cho x va x lon nhat
tim x nho nhat co 3 chu so sao cho x chia het cho ca 3,2,5
(giai chi tiet nhe)
tim cac sn x biet :
|x+1| = 2^3 -1
|2-x|=5
-2. (x+6)+6.(x-10)=8
-4 . (2x+9)-(-8x+3)- (x+13) = 0
cac ban giai dung va chi tiet nha trong toi nay
Tich cua hai phan so la 3/7 neu them vao thua so thu nhat 2 don vi thi tich la 13/21. Tim hai phan so do.
Ai giai that chi tiet va de hieu thi minh tick cho.
(2^11+2^10+2^9+...+2^3+2^2+2+1):(2^8+2^4+1)
(nho trinh bay chi tiet do, ai nhanh nhat va giai chi tiet de hieu thi to tick cho)
Tim 3 so nguyen a, b, c thoa man : a+b=-4 ; b+c=-6 ; c+a=12.
Giai can ke tung chi tiet thi tui moi tick cho.
Tim so nguyen n, biet :
1 + 2 + 3 + ... + n = 55
Ai giai that la chi tiet thi tick luon ko can phai hoi.
tim x biet
5(x+4)-3(x-2)=x
ai giai nhanh va dung nhat se duoc minh like
tim x
180 chia het cho x .180 chia het cho x va 10<x<30
[GIAI CHI TIET HO MINNH NHA]
bai 1 : hoc sinh khoi 6 cua truong khi xep hang 2 , 3 , 4 , 5 , 6 deu thua 1 em nhung khi xep hang 7 thi vua du . biet rang so hoc sinh khoi 6 it hon 350 . tinh so hoc sinh khoi 6
cac cau lam gi giai ro rang chi tiet nah cac cau ai nhanh nhat thi mink se tick cho nguoi do nha