How do you simplify an Algebraic expression?

You can solve one by ... it's hard to explain So i'll just show you

Step-by-step explanation:

Here's an example,

2x+7=4+5x

First you subtract the variables on both sides (lower variable)

2x+7=4+5x

-2x - 2x

Which will leave you

7=4+3x

The subtract the whole number on each side (lower number)

7=4+3x

-4 - 4

Which will leave you

3=+3x

Then you divide on both sides

3/3 3/3

which should leave you

x=1