SOLUTION: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
-3x + 4y = -19.5
-3x + y = -10.5
Algebra.Com
Question 574718: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
-3x + 4y = -19.5
-3x + y = -10.5
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Multiply the second equation by -1. Add the two equations, term by term, eliminating the 
term. Solve the resulting single variable equation in 
. Once you have a value for subsititue into either of the original equations and solve for .
If you get a trivial result when you add the two equations, something like 
, then you have an infinite number of solutions. If you get an absurdity, something like 
, then you have no solution.
John
My calculator said it, I believe it, that settles it
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