You can put this solution on YOUR website! Collect "like terms" on the same side of the equation
You do this by adding or subtracting the same term on each side of the equation
27+u=3-3u
Add 3u to both sides of the equation
27+u+3u=3-3u+3u
We now have
27+4u=3
Subtract 27 from both sides of the equation
27+4y-27=3-27
Do the arithmetic
4u=-24
Solve for u by dividing each side of the equation by 4
So u=-6
I hope that this helps