Answer:
[tex]-14x-9y=6[/tex]
Step-by-step explanation:
we have
[tex]-7x-y=0[/tex] ---> First equation
[tex]7x+8y=-6[/tex] --->Second equation
we know that
To subtract the 2nd equation from the first, negate all three of the second equation terms: -7x-8y=6
and then adds this result with the first equation
so
[tex]-7x-y=0\\-7x-8y=6\\--------\\-14x-9y=6[/tex]
