Question 965450
Wrong question.  One equation with two unknown variables ---------- infinite solutions which fit a line.


You can solve the equation for x:
{{{x=42-y}}}
but then x is shown as a formula and y is still unknown.


You can solve the equation for y:
{{{y=42-x}}}
but then y is shown as a formula and y is still unknown.


You can PICK a value for one variable and then evaluate the corresponding value of the other variable.