What is the value of k if 2x – 3y = 1, 3x – 4y = 1 and 4x – y = k.
My exam is going on please answer this is my last question.
I will mark Brainliest to the first answer.
Please help
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Answer:
Given equation, 2x+3y=k
x=2,y=1 is solution of resultant equation.
2(2)+3(1)=k
∴k=7
∴ Resultant equation is 2x+3y=7
At x=0,2(0)+3y=7
y=
3
7
At y=0,2x+3(0)=7
x=
2
7
∴(0,
3
7
) and (
2
7
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