SOLUTION: I'm stumped. I'm told there are two answers for the following: |2r-7| + 4 = 11. Depending on how I work it, I've gotten r=0, r=11, r=11/2. How do I work this one? Thanks! R.Cossel

Algebra ->  Absolute-value -> SOLUTION: I'm stumped. I'm told there are two answers for the following: |2r-7| + 4 = 11. Depending on how I work it, I've gotten r=0, r=11, r=11/2. How do I work this one? Thanks! R.Cossel      Log On


   

Question 123155: I'm stumped. I'm told there are two answers for the following: |2r-7| + 4 = 11. Depending on how I work it, I've gotten r=0, r=11, r=11/2. How do I work this one? Thanks! R.Cossel
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!



|2r - 7| + 4 = 11





Add  -4 to both sides





|2r - 7| = 7  So,





2r - 7 =  7  or

2r - 7 = -7





If 2r - 7 =  7

       2r = 14

        r =  7





If 2r - 7 = -7

       2r =  0

        r =  0