SOLUTION: Part 1: Decide whether you would use the graphing, substitution, or elimination method to solve the following system of equations. Explain, in complete sentences, why you chose th

Algebra ->  Linear-equations -> SOLUTION: Part 1: Decide whether you would use the graphing, substitution, or elimination method to solve the following system of equations. Explain, in complete sentences, why you chose th      Log On


   

Question 315280: Part 1: Decide whether you would use the graphing, substitution, or elimination method to solve the following system of equations. Explain, in complete sentences, why you chose that method.
Part 2: Solve the following system of equations and show all of your work.
4x + 3y = -1
3x + y = 3

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
Elimination is the method of choice.
4x + 3y = -1
3x + y = 3 Multiply by -3 & add
-9x-3y=-9
4x+3y=-1
----------------
-5x=-10
x=-10/-5
x=2 ans.
4*2+3y=-1
8+3y=-1
3y=-1-8
3y=-9
y=-9/3
y=-3 ans.
Proof:
3*2-3=3
6-3=3
3=3