To minimize the amount of work required, determine whether to use the substitution or the elimination method
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To minimize the amount of work required, determine whether to use the substitution or the elimination method to solve each system. Explain. Do not actually solve.
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(a) 3x + y = −7 x - y = -5 (b) 6x - y = 5 y = 11x (c) 3x - 2y = 0 9x + 8y = 7
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Related Book For
Intermediate Algebra
ISBN: 9780134895987
13th Edition
Authors: Margaret Lial, John Hornsby, Terry McGinnis
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