=>16/35=x-x/7
=>16/35=7x-x/7
6x/7=16/35
=>30x/35=16/35
30x=16
x=8/15
x/7= x+ 16/35
x/7-x=16/35
x*(1/7- 1)= 16/35
x* (-6/7 )= 16/35
x= -8/15
cac ban oi giai gium minh bai nay nhe neu ai giai duoc minh cho 1 like luon ok
chung minh rang :
10 mu n cong voi 5 mu 3 chia het cho 9
43 mu 43 tru cho 17 mu 17 chia het cho 10
nhanh nhe minh muon chu nhat la co cau tra loi cang som cang tot nhe
1/cong tu va mau cua 15/23 voi cung 1 so tu nhien n roi rut gon duoc 2/3. tim n?
2/so cac so nguyen x:
15-/-2x+3/ x /5 + 4x/=-19
3/ Tim abc biet 1abc : abc du 3
Co ai bit thi giai giup minh nhe
biet bai nao thi lam bai do neu bit het thi cang tot , minh se tick nha
thanks may ban nhiu nhiu
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.
X-2=-7-13
moi nguoi giup minh nhe va ket ban voi minh luon ai ma tra loi nhanh nhat minh se bam tick
Tim UC(-15;+20)
Giup minh voi, minh ko biet cach trinh bay, ai nhanh minh tick cho.
tinh
6mu3mu1=....?
3mu2mu3=...?
7mu1mu2mu3mu4=...?
ai biet ko giup mk voi cang nhanh cang tot nha
Tim so tu nhien a nho nhat biet a chia cho 5;8;12 deu du 2;6;8 ai tra loi nhanh va dung thi minh like nha giup minh voi cam on ban nao da chi thank you
3/5.22+54/44.65+18/65.72 trinh bay giup minh voi ai lam duoc to tick cho
Tim x biet :
-12x+60+21-7x=5
Cac ban ghi loi gai giup minh voi......
Ai nhanh tay minh tick cho!