Checking ordered pair solutions to equations
Checking solutions to two-variable linear equations is a free educational video by Khan Academy.It helps students in grades 8 practice the following standards 8.EE.C.8.B.
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1. 8.EE.C.8.B : 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..