1a. y = -56 + 5x

 

1b.

or

 

 

 

2.

 

 

 

3.

 

 

 

4.

 

 

 

5.

 

 

Challenge:

 

6. Equation: 2x +12 = 3y - 31

 

Answer:

 

 

 

 

7. Equation:

Answer:

 


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