Các câu hỏi tương tự
Tìm x,y,z biết :
1) -5/2x+1=-3/x-2
2 ) x/-2=y/-3 và x.y=54
3) |2/5.√x-1/3|-2/5=3/5
4) 3x=2y, 7y=5z và x-y+z=32
5) x/5=y/3 và x^2-y^2=4
tim x,y biet
a/ x/4 = y/5 va x+y = 4,08
b/ -34 = 7x va x-y =-40
c/ x/4 = 3/5 va x.y =1215
tim x,y biet
a/ x/y = 3/4 va -3x + 5y =33
b/ x2/y2 = y2/16 va x2 + y2 = 100
c/ x/4 = y/7 va x.y =112
tim x ,y,z biet : 3x-2y/5=3x-1/4=2y+5/7
tim cac cap so x,y biet:
\(\frac{x}{2}=\frac{y}{5}\)va x.y =90
\(\frac{3x-y}{x+y}=\frac{3}{4}\)tim\(\frac{x}{y}\)
Tim x,y,z biet: a,(3x−2y)6+(y−5z)8+|z−2|0(3x−2y)6+(y−5z)8+|z−2|0 b,3x−2y42x−4z3y−3z23x−2y42x−4z3y−3z2va x+y+z990Gấp gấp gấp!Tim x,y,z biet: a,(3x−2y)6+(y−5z)8+|z−2|0(3x−2y)6+(y−5z)8+|z−2|0 b,3x−2y42x−4z3y−3z23x−2y42x−4z3y−3z2va x+y+z990Gấp gấp gấp!
Đọc tiếp
Tim x,y,z biet: a,(3x−2y)6+(y−5z)8+|z−2|=0(3x−2y)6+(y−5z)8+|z−2|=0
b,3x−2y4=2x−4z3=y−3z23x−2y4=2x−4z3=y−3z2va x+y+z=990
Gấp gấp gấp!
Tim x,y,z biet: a,(3x−2y)6+(y−5z)8+|z−2|=0(3x−2y)6+(y−5z)8+|z−2|=0
b,3x−2y4=2x−4z3=y−3z23x−2y4=2x−4z3=y−3z2va x+y+z=990
Gấp gấp gấp!
tim x ,y,z biet :
3x-2y/5=3x-1/4=2y+5/7
tim x ,y,z biet :
3x-2y/5=3x-1/4=2y+5/7
tìm x,y,z biết:
a) x\3=y\4 ; y\5=z\7 và 3x + y -2z=2,4
b) x\2=y\3 và x.y=54