Answer:
[tex]u=-\frac{6}{7} w[/tex]
Step-by-step explanation:
[tex]4u+8w=-3u+2w[/tex]
Add [tex]3u[/tex] and [tex]-8w[/tex] on both sides.
[tex]4u+3u=2w-8w[/tex]
Add or subtract like terms.
[tex]7u=-6w[/tex]
Divide [tex]7[/tex] on both sides.
[tex]7u/7=-6w/7[/tex]
[tex]u=-\frac{6}{7} w[/tex]
[tex]u[/tex] is the independent variable now.
