jaylencarter189 jaylencarter189

21-06-2019
Mathematics

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x + y = k
2x + 3y = k + 1
The point of intersection of the lines has an x-coordinate of

A.2k + 1
B.-2k + 1
C.2k - 1

x y k 2x 3y k 1 The point of intersection of the lines has an xcoordinate of A2k 1 B2k 1 C2k 1 class=

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Mar92781 Mar92781

21-06-2019

Answer: Yes A is correct

Step-by-step explanation:

Multiply the first equation by 3...

2x+3y=k+1 needs to be subtracted by 3x+3y=3k

which equals -x=-2k-1

Then you can multiply the equation by -1 to make them all positive. Resulting in x=2k+1

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