SOLUTION: how do you solve 4x=6-2y 6x+3y=-9

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Question 444501: how do you solve
4x=6-2y
6x+3y=-9
Found 2 solutions by solver91311, josmiceli:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


There are four different ways:

1. Substitution

2. Elimination

3. Row Reduction

4. Cramer's Rule

I'm not doing all four for you, so you have to tell me what you want.

John

My calculator said it, I believe it, that settles it
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Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
(1) 4x=6-2y
(2) 6x%2B3y=-9
Add 2y to both sides of (1)
(1) +4x+%2B+2y+=+6
(2) +6x+%2B+3y+=+-9
Divide both sides of (1) by 2
Divide both sides of (2) by 3
(1) +2x+%2B+y+=+3
(2) +2x+%2B+y+=+-3
These equations have no solution because
the line are parallel and do not intersect
here is a plot:
+graph%28+400%2C+400%2C+-10%2C+10%2C+-10%2C+10%2C+-2x+%2B+3%2C+-2x+-+3%29+