I am curious how to proceed with this problem:
I know I must remove the Absolute value, but how?
Thanks in advance.
Not exactly, go bact to this step:
You will want to solve for x.
Multiply each term by 28 to remove the fractions. Then subtract 7 from both sides and the middle.
Now, divide each term by 20, reduce your fractions, and you will find the range of x.Code:-21 < 20x + 7 < 21 -7 - 7 -7 --------------------- -28 < 20x < 14