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Which of the following ordered pairs is a solution of the given system of linear equations?
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Which of the following ordered pairs is a solution of the given system of linear equations?

Which of the following ordered pairs is a solution of the given system of linear equations-example-1
User Llyle
by
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2 Answers

1 vote
The answer is D

5+4=9 and 9=9 (from the first equation)

5-0.5(4)= 5-2=3 and 3=3

Hope this helped
User Holstebroe
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8.3k points
6 votes
x + y = 9
x = 9 - y

x - 1/2y = 3...multiply by 2
2x - y = 6

2(9 - y) = 6
18 - 2y = 6
-2y = 6 - 18
-2y = - 12
y = -12/-2
y = 6

x + y = 9
x + 6 = 9
x = 9 - 6
x = 3

solution is (3,6)
User John Fish
by
7.9k points
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