do -2x+y=6 and 4x-2y=5

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Have you seen the video clip on how to solve this systems of linear equations by substitution? The teacher does a great job showing step by step how to solve this kind of problem. Please, watch the video clip. If you don't understand what is going on, then get back to me. There are many ways to solve systems of linear equations. You can also use the graphing method, elimination method and matrix algebra.