What would be the mean if the value 3 was added to the following set?
14, 14, 17, 19, 25
17.8
20.8
18.4
15.3

15.3 because 14+14+17+19+25+3 = 92. When you divide 92 by 6 which equals 15.333333 and then rounded to the nearest tenth the answer is 15.3.

1. Find the |x| meaning absolute value, which is just turning everything in the lines positive.

So |11-4x|=21 would be 11+4x=21

Then subtract 11 from both sides to get x alone

11-11 +4x = 21-11
4x= 10

Then divide both sides by 4 to find the variable

4x/4=10/4

X=2.5