Question

50 POINTS

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


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

Answer 1

(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

Answer 2

• 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)