Answer :

HolmesNWatson
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 :)
Geekhawk
Your goal is to get "x" by itself on one side

[tex]4x-2=90[/tex]

Add +2 to each side

[tex]4x-2+2=90+2[/tex]

[tex]4x=92[/tex]

Divide 92 by 4

92÷4=23

[tex]x=23[/tex]

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