In Exercises 518, solve each system by the substitution method. 1 2 -x + 2 + 2
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In Exercises 5–18, solve each system by the substitution method.
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1 2 -x + 2 + 2 3 У y = -x + 7 4
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y1x2 3 y x7 Substitute the expression yx2 for y in th...View the full answer
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