taylorlynn1127
taylorlynn1127 taylorlynn1127
  • 01-06-2019
  • Mathematics
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carlosego
carlosego carlosego
  • 01-06-2019

For this case we have the following system of equations:

[tex]8x-9y = -122\\-8x-6y = -28[/tex]

To solve, we add both equations:

[tex]8x-8x-9y-6y = -122-28\\-15y = -150\\y = \frac {-150} {- 15}\\y = 10[/tex]

We find the value of "x":

[tex]8x = -122 + 9y\\x = \frac {-122 + 9y} {8}\\x = \frac {-122 + 9 (10)} {8}\\x = \frac {-122 + 90} {8}\\x = \frac {-32} {8}\\x = -4[/tex]

The solution is (-4,10)

ANswer:

Option C

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