SOLUTION: Need to solve this set of equations using all these methods
Substitution, elimination, matrices, and determinants. Please show line by line step by step explanation for each one
Algebra ->
Linear-equations
-> SOLUTION: Need to solve this set of equations using all these methods
Substitution, elimination, matrices, and determinants. Please show line by line step by step explanation for each one
Log On
Question 1140966: Need to solve this set of equations using all these methods
Substitution, elimination, matrices, and determinants. Please show line by line step by step explanation for each one
3x+y=9
9x+3y=12 Found 2 solutions by Alan3354, josgarithmetic:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! 3x+y=9
9x+3y=12 ---> 3x+y=4
================
Inconsistent, no solution.
If you graph them, you get 2 parallel lines.
No intersection, no solution.
--------------
3x+y=9
3x+y=4
------------ Subtract
0 = 5
That's inconsistent.
(