Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.

x + 8y = 14

-3x + 4y = 0

Question

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 

x + 8y = 14 

-3x + 4y = 0

mertsj · Answer

Can you multiply the first equation by 3?

anonymous · Answer

yes

mertsj · Answer

What did you get?

anonymous · Answer

x + 8y = 14
x  + 8 *(+ 0 + 0.75x )=+ 14 
x  + 0 + 6x =+ 14
7x  + 0 =+ 14 
7x  + 0 =+ 14 
      - 0  - 0  
7x  =+ 14 
------ -----
+ 7    + 7  
 x = 2

mertsj · Answer

I'm pretty sure you used substitution and not elimination as the directions said.

anonymous · Answer

i think i did still trying to get used to the elimination method.

mertsj · Answer

Well then, why didn't you do what i said and multiply the first equation by 3?

anonymous · Answer

my newc answers i came out with was x=7/3 and y=7/4

zepp · Answer

http://puu.sh/pQbD

zepp · Answer

x should be 2 and y should be 1.5 (or 1/2)

mertsj · Answer

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