To solve algebraic problems, we must use the proper steps to get our answer.
First, we must simplify both sides of the equation.
u + 9 = 4u
Second, we need to subtract 4u from both sides.
u + 9 - 4u = 4u - 4u
-3u + 9 = 0
Now, let's subtract 9 from both sides.
-3u + 9 - 9 = 0 - 9
-3u = -9
Finally, we must divide both sides by -3.
[tex]\frac{-3u}{-3} = \frac{-9}{-3}[/tex]
u = 3
There you have it, your answer is 3.
Hope this answer helped you out. :)
