Where Two Lines Meet

A system asks for the one point that lies on both lines at once. Solve it by substitution or elimination, read whether the lines cross once, never, or everywhere — and then hand back the exact quantity asked, which is not always a single variable. Watch the sign that vanishes mid-substitution and the answer that stops one step short.

8 STEPS · 6 QUICK CHECKS · the intersection is the solution · answer what is asked · v1