tim so nguyen x thoa man : -x - 47 + 37 = 0

so nguyen x thoa man 55-(6-x)=15-(-6) x bang

a, co bao nhieu cap so nguyen ( x,y ) thoa man x + y=1

b. co bao nhieu cap so nguyen ( x,y ) thoa man x.2 + y =1

cho x la so nguyen thoa man : -7/25<x/30<-1/5. so gia tri cua x thoa man la

Cho x;y la so nguyen sao cho | x | + | y | = 5. So cap so nguyen ( x;y ) thoa man la

Tim 3 so nguyen to lien tiep x,y,z (x<y<z) thoa man A = x^2 + y^2 + z^2 la so nguyen to

Tim so nguyen x thoa man : A=14-x/4-x dat GTLN

a)Tim tat ca cac so nguyen duong x, y , z thoa man: \(\frac{x+y\sqrt{2013}}{y+z\sqrt{2013}}\)la so huu ti, dong thoi x² + y²+ z² la so nguyen to.

b) Tim so tu nhien x, y thoa man: x(1+x+x²) = y(y-1).

so nguyen duong x thoa man x^5=x^12