2x - 4/5 = x + 4
You have to do -x to both sides
2x - x - 4/5 = x - x + 4
x - 4/5 = 4
Then you add 4/5 to both sides
x - 4/5 + 4/5 = 4 + 4/5
x = 24/5
Then we need to check are work by plugging it in
2(24/5) - 4/5 = 24/5 + 4
48/5 - 4/5 = 24/5 + 4
44/5 = 24/5 + 4
44/5 = 44/5
So x = 24/5
