CamdenJimduh CamdenJimduh

13-01-2017
Mathematics

contestada

3x+2y=0
9x-24=2y

How can you order a ladder?

Respuesta :

doodle10 doodle10

14-01-2017

Answer: x=2 and y=-3

Because:
Substitute the second equation for 2y into the first equation
3x + 9x - 24 = 0
12x - 24 = 0
12x = 24
x = 2

3x + 2y = 0
(3x2) + 2y = 0
6 + 2y = 0
2y = - 6
y = - 3

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