Answer:
The first one
Step-by-step explanation:
They have 2 outputs for the same input
x=-4 and y=4
(6x+9y)-(6x+7y)=12-4=8
--> 9y-7y=8
-->2y=8-->y=4
-->6x+7×4=4 -->x=-4
your answer would be x=21/13
When the logs have the same base: logb(f(x)) = logb(g(x)) --> f(x) g(x)
if im correct please mark brainliest :)