A system of equations is a collection of two or more equations that share the same variables (example. x, y). The goal is to find values (numbers) for the variables that make all the equations true at the same time.
These two equations form a system. Solving it means finding the values (numbers) of x and y that work for both equations.
Think of it as finding a common solution where the rules (equations) agree.
If you graph the equations, the solution is usually where their lines intersect (cross each other).