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Mathematics, 26.09.2019 07:20 davidleew24

Which of the following would be the best first step when solving the following system using the substitution method?
x - y = -4 ; x + 2y = 5 a. x = -4 - y b. x = -4 + y c. 2y = 5 - x d. 2y = 5 + x

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