\(\frac{y}{5}=\frac{x}{3}\)
Áp dụng t/c ............... ta có :
\(\frac{y}{5}=\frac{x}{3}=\frac{y-x}{5-3}=\frac{24}{2}=12\)
\(\Rightarrow\frac{y}{5}=12\Rightarrow y=60\)
\(\Rightarrow x=y-24\Rightarrow x=60-24=36\)
cho hai so tu nhien x va y thoa man 2^x+1*3^y=12^x khi do x+y=
ai giup dau tien cho 2 like
cho cac so x,y,z thoa man( x-1)/2=(y-2)/3=(z-3)/4 va 2x +3y-z=95 khi do x+y+z =
ai nhanh minh tich
co bao nhieu cap x;y thoa man x(x+y)=-45 va y(x+y)=5
Cap so (x;y) nao thoa man dang thuc sau: 3^2x+1.7^y=9.21^x
Cac ban giup mk voi!!! Mai phai nop oi!!!!!!!!
cap so x,y nao thoa man dang thuc: 3^2x+1.2^y=9.21^x
GIUP MIK NHA !! <3<3
so cap (x,y) thoa man x(x+y)=-45;y(x+y)=5
Tim cac cap so thuc (x,y) sao cho x va y thoa man dong thoi 2 dieu kien:x=x2+y2 va y=2xy
so cac cap so nguyen x;y thoa man x+y+x*y = 3
tim cap so nguyen x,y thoa man: |x+4|+|y-2|=3
