What's Wrong with These Problems????

Explain what is wrong with each of these problems and then re-work the problems getting the correct answers.

 

1. Solve for x:

2. Evaluate a + 2b - c
when a = -2, b =3,and c= -4:

expression

  

 

  

3. Solve for x:

4. Simplify:

polynomial

 

  

5. Simplify:

expression
             
             
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