Question 318719
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