Answer
$$w=0,\:v=-5,\:u=3$$
Work Step by Step
Solving the system of equations using substitution, we find:
$$ -\left(8+6w-5-6w\right)-2\left(6w-5\right)-3w=7\\ w=0 \\ v=6\cdot \:0-5=-5 \\ u=8-5-6\cdot \:0=3$$
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.