Augmented Matrices and The Gauss-Jordan Method

19. Solve each of the following systems by elimination. Check your answers by graphing, and paste a screen shot of each graph with the solution shown. a. 3x – 12y = 25 b. .5x = .25y . 2x – 4y = 7 x + 2y = 30. 20. Systems in three variables can also be solved by using the elimination method. Work with any two equations at a time. ................
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