4x-2=90 wha is the answer to this problem?

Firstly, you want to get 4x alone, so to do this, you add 2 to both sides, as you always do the opposite operation.
This then becomes
4x=92
To get x alone, you then divide both sides by 4.
92/4=23
Therefore, x= 23
Hope this helps :)

Your goal is to get "x" by itself on one side



Add +2 to each side





Divide 92 by 4

92÷4=23

The answer is part a: use