SOLUTION: Solve the absolute value equation : 10+20|x-5|=90 30|x-5|=90 Why is this incorrect?

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Question 318719: Solve the absolute value equation : 10+20|x-5|=90
30|x-5|=90 Why is this incorrect?
Answer by cygnewhite8(4) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the absolute value equation : 10+20|x-5|=90
30|x-5|=90 Why is this incorrect?
>> you can't add 10 to 20 because it's "20 TIMES |x-5|"
To solve this equation 10+20|x-5|=90 :
1) minus 10 from both sides >>20|x-5| = 80
2) divide 20 from both sides >>|x-5| = 4
x = 1 or 9