Các câu hỏi tương tự
a, Tim x biet:/x-2/+/3-2x/=2x+1
b, Tim x,y thuoc Z biet:xy+2x-y=5
c, tim x,y,z, biet :2x=3y;4y=5zva 4x-3y+5z=7
tim x thuoc Z biet : 2x+\(\frac{1}{7}=\frac{1}{y}\)
1. tim cac so x,y,z biet rang 1/2x=2/3y=3/4zva x-y=15
tim x;y;z biet
1/2x=2/3y=3/4z va x-y =15
Tim x thuoc z biet:
A)(x-3)(2y+1)=7
B) (2x+1)(3y-2)=-55
Tim x,y thuoc Z biet: \(2x+\frac{1}{7}=\frac{1}{y}\)
Tim x,y,z biet:2(x-1)-3(2x+2)-4(2x+3)=16
Tim x,y,z biet:2(x-1)-3(2x+2)-4(2x+3)=16
giai day du
Tim x+y+z = ? biet (x-1) /2= (y-2) /3 = (z-3) /4 va 2x+3y-z=95