Question

5x - 3y = 15 oredered pair by
( ,5),( ,0),(2, )

x + 4y = -2 oredered pair by
(0, ),( ,0),(1 , )?

Answer 1

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Answer 2

3x + 4y = 27
5x - 3y = 16

3x + 4y = 27
5(3x + 4y) = 5(27)
15x + 20y = 135

5x - 3y = 16
3(5x - 3y) = 3(16)
15x - 9y = 48

....15x + 20y = 135
–) 15x ...- 9y = ..48
-----------------------------------
.............29y = ..87

29y = 87
y = 87/29
y = 3

3x + 4y = 27
3x + 4(3) = 27
3x + 12 = 27
3x = 27 - 12
x = 15/3
x = 5

∴ x = 5 , y = 3

Answer 3

when x = 0 solve for y
5(0)-3y = 15
-3y = 15 divide each side by -3 y = -5
when y = 0 5 x -3(0) = 15 so x = 5

Answer 4

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