1) \(\frac{x}{8}=\frac{-28}{32}\)
=> \(x.32=8.-28\)
=> \(x.32=-224\)
=> \(x=-224:32=-7\)
2) \(\frac{3}{y}=\frac{12}{24}\)
hay \(\frac{3}{y}=\frac{3}{6}\)
=> \(y=6\)
3) \(\frac{3}{4}=\frac{15}{y}\)
=> \(3.y=4.15\)
=>\(3.y=60\)
=> \(y=60:3=20\)
1 tim cac so nguyen x,y biet
x/7=6/21
-5/y=20/28
1/2=x/12
x/8=-28/32
3/y=12/24
3/4=15/y
2 viet 3 phan so bang phan so -10/15
giup mk ti di ak mk tick cho
1 tim cac so nguyen x,y biet
x/7=6/21
-5/y=20/28
1/2=x/12
x/8=-28/32
3/y=12/24
3/4=15/y
2 viet 3 phan so bang phan so -10/15
tim x dua vao quan he uoc boi:
tim so tu nhien x sao cho x-1 la uoc cua 12
tim so tu nhien x sao cho 2x+1 la uoc cua 28
tim so tu nhien x sao cho x+15 la boi cua x+3
tim cac so nguyen x,y sao cho (x+1)(y-2)=3
tim so nguyen x sao cho(x+2).(y-1)=2
tim so nguyen to x vua la uoc cua 275 vua la uoc cua 180
tim so nguyen to x,y biet x+y=12 va UCLL (x:y)=5
tim so tu nhien x,y biet x+y=32 va UCLL (x:y)=8
tim so tu nhien x biet x chia het cho10; xchia het cho12; x chia het cho15 va 100<x<150
tim so x nho nhat khac 0b biet x chia het cho 24 va 30
40 chia het cho x . 56 chia het cho x va x>6
Bai 1: Tim cac so nguyen n sao cho: n - 3 chia het cho n - 1
Bai 2: Tim cac so nguyen x va y biet : x . y = -15
AI LAM NHANH VA DUNG THI MK SE TICK CHO NHA ^ _ ^
tim cac so nguyen x,y biet :
a) (x-1).(y+2)=7
b) x(y-3)=-12
c) (x-3)(y-3)=9
cac ban lam het ra cho minh nha,mk se tick cho!
bai 1 : tim cac so nguyen x va y biet: x . y = -15
bai 2 : tim cac so nguyen n sao cho n - 3 chia het cho n - 1
CAC BAN GIUP MK NHA .
AI LAM NHANH VA DUNG THI MK SE TICK CHO ^ _ ^
tim cac so nguyen x,y,z biet :-6/12=x/8=-7/y=z/-18
tim cac so nguyen x , y biet
c) (2x + 1)(y - 4)
d) x + y = 3 va x - y = 15
1,tim cac so nguyen x,y biet: -2/x=y/3 va x<0<y
2, Tim cac so nguyen x,y biet:x-3/y-2=3/2 va x-y=4