Answer
$(f)$
Work Step by Step
Wanting to eliminate $y$, we multiply the second equation with $2$,
so the $y$-terms become opposite. We obtain
$8x+6y=-15$
$10x-6y=16$
... choice $(f)$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.