How do you solve 2| 5- \frac { 7} { 3} x | + 7= 11?

1 Answer
Jul 20, 2017

x=9/7 or x=3

Explanation:

2|5-7/3x|+7=11 iff 2|5-7/3x|=4iff |5-7/3x|=2 iff

5-7/3x=2 or 5-7/3x=-2 iff

7/3x=5-2 or 7/3x=5+2iff

7/3x=3 or 7/3x=7iff

x=9/7 or x=3