MODERATE EXERCISES - Absolute Value and Distance

(1) Solve for x. 

 (a) 

 (b) 

 (c)
( Click On HINT For Some Help , Click On SOLUTION To See The Answer )
(2) Solve for x. 
 (a) |x2 - 1| = 3

 (b) |x2 + 3x| = 0
( HINT , SOLUTION )
(3) Simplify the following expressions. 
 (a) 

 (b) |7r - 7s| - |r - s| - 2|3(r - s)|

 (c) a - b + |a-b| - |b - a|
( HINT , SOLUTION )



Introductory Exercises Moderate Exercises