In Exercises 1928, solve each system by the addition method. x - 4y = -7 |3x +
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In Exercises 19–28, solve each system by the addition method.
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√x² - 4y² = -7 |3x² + y² 31
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x4y 7 3x y 31 Eliminate the xterms by multipl...View the full answer
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