SOLUTION: i am starting substitution but i don't know to do this problem or is it elimination? 4y-x=-24 3x=12y+72

Algebra ->  Equations -> SOLUTION: i am starting substitution but i don't know to do this problem or is it elimination? 4y-x=-24 3x=12y+72      Log On


   



Question 801118: i am starting substitution but i don't know to do this problem or is it elimination?
4y-x=-24
3x=12y+72

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
i am starting substitution but i don't know to do this problem or is it elimination?
4y-x=-24
3x=12y+72
===============
The problem is not substitution or elimination.
Those are 2 methods you can use to solve any of this type of problem.
-----------
4y-x=-24 --> x = 4y + 24
3x=12y+72 /3 --> x = 4y + 24
----
It's the same eqn twice.
Dependent, no unique solution.
Infinite # of solutions.