Answer:
B. -14
Step-by-step explanation:
If you solve the system using the method of elimination, the y terms will automatically cancel each other out without any manipulation at all. So go with it and solve for x first. If the y terms cancel out, you're left with x = -3.
If x = -3, sub that value in for x in eitheer one of the original equations and solve for y:
[tex]3x-y=5[/tex] becomes
[tex]3(-3)-y=5[/tex] and
[tex]-9-y=5[/tex] so
[tex]y=-14[/tex]
