SOLUTION: Solve and check for extraneous solution.
[4x]=28
Algebra.Com
Question 579386: Solve and check for extraneous solution.
[4x]=28
Answer by mrjunecarlo1095@ymail.com(10) (Show Source): You can put this solution on YOUR website!
let:
-28 = 4X = 28
-28/4 = X = 28/4
Thus X is equal to -7 and 7
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