Mathematics, 21.04.2020 01:15 lucaszsanches
Dimitri determined that the ordered pair (2, –2) is a solution to the system of linear equations 7x + 9y = –4 and 5x – 2y = 6 as shown.
He mixed up the coordinates of the ordered pair when substituting it into the equations 7x + 9y = –4 and 5x – 2y = 6.
He checked the equation 7x + 9y = –4 first when he should have checked first.
He made a mistake in his calculations when substituting the ordered pair into the equation 7x + 9y = –4 and simplifying.
He made a mistake in his calculations when substituting the ordered pair into the equation 5x – 2y = 6 and simplifying.
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Dimitri determined that the ordered pair (2, –2) is a solution to the system of linear equations 7x...
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