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Solve by linear combination
2x-4y=4
x-4y=10


Write your answer as an ordered pair with no spaces (x,y)

2 Answers

4 votes

Answer:

(1/2,1/4) because m= 1/5 and m= 1/2 and te equation is y=1/4x - 5/2 and y= 1/2x - 1

User Justin Killen
by
8.2k points
5 votes
  • 2x-4y=4---(1)
  • x-4y=10---(2)

Substracting both


\\ \sf\Rrightarrow x=4-10=-6

Putting in eq(2)


\\ \sf\Rrightarrow -6-4y=10


\\ \sf\Rrightarrow -4y=16


\\ \sf\Rrightarrow y=-4

Hence our solution is

  • (x,y)=(-6,-4)
User Rajkumar
by
8.1k points

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