lesson
Determining the Number of Solutions in a System
Determine whether a system of two linear equations has one solution, no solution, or infinitely many solutions without fully solving.

Determine whether a system of two linear equations has one solution, no solution, or infinitely many solutions without fully solving.
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6 lessons
Solve systems of linear equations algebraically using substitution and elimination, and determine the number of solutions for a given system.
Analyze and solve pairs of simultaneous linear equations.
Solve systems of two linear equations in two variables algebraically, and estimate solutions by graphing the equations. Solve simple cases by inspection. For example, 3x + 2y = 5 and 3x + 2y = 6 have no solution because 3x + 2y cannot simultaneously be 5 and 6.