SOLUTION: Which of the following is a method for solving systems of two variables? Substitution Addition Both of the above None of the above I think it's both but not too

Algebra ->  Trigonometry-basics -> SOLUTION: Which of the following is a method for solving systems of two variables? Substitution Addition Both of the above None of the above I think it's both but not too      Log On


   

Question 148900: Which of the following is a method for solving systems of two variables?
Substitution
Addition
Both of the above
None of the above

I think it's both but not too sure
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
You are correct.
.
Substitution method described here:
http://www.purplemath.com/modules/systlin4.htm
.
Addition method described here:
http://www.purplemath.com/modules/systlin5.htm