8th Grade · Expressions & Equations
System of Equations
8.EE.C.8a
Definition
A set of two or more equations with the same variables, solved together. The solution is the point that satisfies all equations at once.
Examples
- The solution is where the graphs of both equations cross.
- Solve by graphing, substitution, or elimination — all give the same intersection point.
Key rule
The solution to a system is the point that makes every equation true.
Memory hook
Two or more equations, one shared solution.