Question

× + 5y - 12 , p/ × - 8 e y = - 6

Answer 1

x-5y-12

-8+5.(-6)-12
-8-30-12
-38-12
= -50

:3

Answer 2

x + 5y - 12

para:
x = -8
y = -6

===

x + 5y - 12
-8 + 5.(-6) - 12
-8 -30 -12
=> -50