Mathematics, 22.11.2019 01:31, wwwvio7565
Which of the following would not be the result of a substitution in the following system? 2x + y = 7 y - x = 1
a) 7 - 2x - x = 1
b) 2x + x + 1 = 7
c) 2(y + 1) + y = 7
Answers: 2
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Which of the following would not be the result of a substitution in the following system? 2x + y =...
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