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This is the thirtieth video in the series of lessons on math provided by DeafTEC. Gary Blatto-Vallee, a math and science instructor at the National Technical Institute for the Deaf, guides viewers through a variety of mathematical exercises in this DeafTEC video series. All lessons are fully captioned, signed in ASL, and voiced. In this 12:07 video, Blatto-Vallee uses an electronic whiteboard to show several examples of how to solve a system of two equations with the addition method and check the solution. See the main Math Video Resources page for an introduction to this video series.
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