Question

Solving an equation like this
3x-4=18+5x

Answer 1

3x-4=18+5x
subtract -5x both sides

-2x-4=18
add 4 to both sides

-2x=22
divide by negative to both sides

final answer x=-11

Answer 2

3x-4=18+5x

You would simplify the equation to the form, which is simple to understand
3x-4=18+5x

Then, move all terms with x to the left and all other terms to the right.
+3x-5x=+18+4

We simplify left and right side of the equation.
-2x=+22

Lastly,divide both sides of the equation by -2 to get x.
x=-11