samuel741
samuel741 samuel741
  • 22-02-2017
  • Mathematics
contestada

-5x + 9y = 14
-3x + 9y = -6

Respuesta :

Аноним Аноним
  • 22-02-2017
You can solve it by several ways, but easiest and shortest would be "By Elimination"

So, subtract 2nd equation from 1st, 
-2x = 20
x = -10

Substitute it in 2nd equation, 
-3(-10) + 9y = -6
30 + 9y = -6
9y = -6 - 30
y = -36/9
y = -4

In short, Your Answer would be: (-10, -4)

Hope this helps!
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