SOLUTION: How do you solve this linear system using substitution? x+2y=4 and 2x-6y=3
I have tried many times and I always get it wrong. I can solve the easy questions, but as soon a it gets
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I have tried many times and I always get it wrong. I can solve the easy questions, but as soon a it gets
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Question 649676: How do you solve this linear system using substitution? x+2y=4 and 2x-6y=3
I have tried many times and I always get it wrong. I can solve the easy questions, but as soon a it gets more difficult, I am lost. Answer by sheldonbbtrocks(115) (Show Source):
You can put this solution on YOUR website! x+2y=4
2x-6y=3
We need to turn the x into a -2x, so we multiply the first system by -2
-2(x+2y=4)
-2x-4y=-8
2x-6y=3
-10y=-5
y=2
Plug 2 into the first equation for y
x+2(2)=4
x+4=4
x=0
Solution: (0,2)
