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The ordered pair (1, -5) is a solution for the system x + 2y = -9 and x - y = 6 True False

The ordered pair (1, -5) is a solution for the system x + 2y = -9 and x - y = 6 True False
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3 votes
The ordered pair (1, -5) is a solution for the system x + 2y = -9 and x - y = 6 True False

User Ed Gomoliako
by
8.4k points

2 Answers

2 votes
TRUE
(1) + (-10) = -9
(1) - (-5) = 6
User Adam Evans
by
7.8k points
4 votes

1+2\cdot(-5)=-9\\ 1-10=-9\\ -9=-9\Rightarrow \hbox{ true}\\\\ 1-(-5)=6\\ 1+5=6\\ 6=6 \Rightarrow \hbox{ true}

TRUE
User ToNoY
by
8.3k points
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