\(\frac{3}{x}-5=-\frac{4}{x}+2\)
=> \(\frac{3}{x}+\frac{4}{x}=2+5\)
=> \(\frac{7}{x}=7\)
=> \(x=1\)
\(\frac{3}{x}-5=-\frac{4}{x}+2\)
=> \(\frac{3}{x}+\frac{4}{x}=2+5\)
=> \(\frac{7}{x}=7\)
=> \(x=1\)
tim mot phan so bang phan so 3/4 biet rang neu lay tu so cua phan so do cong voi nam thi duoc phan so bang 4/5
tim so thap phan x co mot chu so o phan thap phan sao cho : 9<x<10
tim mot so biet so do cong voi 10 roi tru 20 roi lai cong voi 60 thi bang 90 so do la ...
khi thuc hien phep cong 2 so thap phan 1 ban hoc sinh da viet nham dau phay cua 1 so hang sang ben trai 1 chu so nên tong tim duoc la 36,074 . Tìm 2 số hang do biet tổng dung la 149,96
dot-chay-hoan-toan-1-mol-ruou-no-x-can-dung-vua-du-35-mol-o2-cong-thuc-phan-tu-cua-x-la
qua va hat la do bo phan nao cua hoa tao thanh em co biet cay nao khi qua da hinh thanh van con giu lai mot bo phan cua hoa
ten cua bo phan do
giup minh nha qua la 3 k
cho phan so 17/21 . Hay tim 1 so tu nhien sao cho khi ca tu so va mau so cua phan so da cung cong voi so do thi dc phan so moi co gia tri bang 6/7
tim x , biet
a) 3 - x = 4
b) 7 + x = 5
tim x biet x - 3 = 5