For this case we have a system of sos equations with two unknowns:
[tex]x-5y = -3\\-7x + 8y = -33[/tex]
We clear "x" from the first equation:
[tex]x = -3 + 5y[/tex]
We substitute in the second equation:
[tex]-7 (-3 + 5y) + 8y = -33\\21-35y + 8y = -33\\-27y = -33-21\\-27y = -54\\y = \frac {-54} {- 27}\\y = 2[/tex]
We find the value of "x":
[tex]x = -3 + 5 (2)\\x = -3 + 10\\x = 7[/tex]
ANswer:
(7,2)
Option C
