`(x)/(8)+(y)/(5)=(31)/(40)`
In the equation above, if x and y are positive integers, what is the value of x+y?

If 12y=x^(3) and x and y are positive integers, what is the least possible value for y?

If x and y are positive integers and sqrt(x) = y + 3 ,then what is the value of y^(2) ?

If (z^(x ^(2 ) +y ^(2)))/(z ^(-2xy ))= (z ^(3)), x and y are positive integers, and x gt y, what is the value of x -y ?

y=3x+1 (1)/(2)y+x=1 In the system of equations above , if (x, y) is the solution to the system, what is the value of (y)/(x) ?

If 17x -5y=8 and 14 x -7y =-7, what is the value of 3x + 2y ?

If x and y are positive integers such that 1994=(x+y)^(2)+3x+y, find y.

x^(2)-y^(2)=18 y=x-4 In the above system of the equations, what is the value of x+y?