We want to group the like terms, i.e. x with x and numbers with numbers
To do this we have to remove that bracket know in computer as a firewall.
Notice the sign before the bracket is (-). This is important to note
In removing the brackets the sign before the numbers or alphabet in the bracket will change.
If you had - sign it will become a + sign
Here we go
4x - 2 + 3x - 5
Notice +2 became -2 and -3 became + 3 when the bracket (or fence) was removed.
Now group those that look alike together
You get 4x + 3x and -2 & -5
Result in 7x and -7
bring them closer and you get 7x-7
you could also go another step by looking at the 7x -7 where you see 7 as the common number
result in 7(x-1). This could also be your answer on a multiple choice test. Good to know.