SOLUTION: Please Help, How do I solve this system using the Adding the Equations Method. c+z = 13 2c+4z = 34 The book says the solution is c=9 and z=4 But I keep getting a fractio

Algebra ->  Equations -> SOLUTION: Please Help, How do I solve this system using the Adding the Equations Method. c+z = 13 2c+4z = 34 The book says the solution is c=9 and z=4 But I keep getting a fractio      Log On


   

Question 196426This question is from textbook sparknotes 101
: Please Help,
How do I solve this system using the Adding the Equations Method.
c+z = 13
2c+4z = 34
The book says the solution is c=9 and z=4
But I keep getting a fraction for c.
Thank You This question is from textbook sparknotes 101

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


(1)

(2)

Multiply (1) by -2:

(3)

Add (3) to (2):

(4)



Substitute 4 for in (1):





John