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Answer to Question #16551 in Linear Algebra for Emerald Green

Question #16551
Solve by substitution or elimination:
[x+Y=13
[2x-3y=1
Expert's answer
x+y=13 => y=13-x&
2x-3y=1

2x-3(13-x)=1
2x-39+3x=1
5x=40
x=8& => y=13-x=13-8=5

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Comments

Assignment Expert
17.10.12, 14:41

x+y=13
2x-3y=1

x=13-y
2x-3y=1

x=13-y
2(13-y)-3y=1

x=13-y
26-2y-3y=1

x=13-y
-5y=1-26

x=13-y
5y=25

x=13-y
y=5

x=13-5=8
y=5

Answer is x=8,y=5

If anything is still unclear, please point out the step where you don't understand something.

Emerald Green
17.10.12, 06:38

how the answer was typed I am in Algebra 2 and my teacher doesn't teach it this way. I need this problem to be broken down a little bit more.

Assignment Expert
16.10.12, 14:31

Dear visitor
What is unclear to you? Please, give us the details so we could help you

Emerald Green
15.10.12, 23:30

I am confused with this answer.

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