Các câu hỏi tương tự
tim a,b,c biet a:b:c =2:3:5 va a-b+c =20
a, Cho F(x) = a x+b . Tim a,b biet f(0) = 3 va F(2) =-1
b, Cho F(x) =a x+ b. Tim a,b biet F(1) = -1 va F(-2) = 8
c, Cho F(x) =a x +b .tim a,b biet F(0) = 1 va F(-2) = -9
tim a,b,c neu a,3 = b/8 = c/5 va 2a + 3b - c = 50
a) cho 2 stn a va b voi a<b thoa man 3(a+b) =5(a-b)
tim thuong cua 2 so
b) Tim cac so Nguyen Duong a, b, c biet rang : a3-b3-c3 =3abc va a2=2(b+c)
tim a,b,c biet a=2b=3/2c va a^2+b^3-5c=a+b^3-5/3c
Tim cac so a, b, c, d, biet rang: a/b/c/d= 2/3/4/5 va a+b+c+d = -42
tim cac so a,b,c,biet:
a/2=b/3 ;b/5=c/4 va a-b+c=-49
nhanh thi duoc kich
Tim a,b,c biet 5a - 3b -4c=46 va a-1/2=b+3/4=c-5/6
tim x va y biet
a)x/18=y/15 va x-y=-30
b)7*x=9*y va 10*x-8*y=68
c)(x1/2)^50 +(y+1/3)^40=o