Question

HELP PLEASE

x + y = k
2x + 3y = k + 1
The lines intersect at

3x + 2y = A
5x + y = B

ax + by = c
dx + ey = f

Answer 1

Solve the equations for the solutions, x and y.
x + y = k
2x + 3y = k + 1
The lines intersect at (?,?)
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Multiply thru the 1st equation by 2:
2x + 2y = 2k
2x + 3y = k+1
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Subtract the 1st from the 2nd, then solve for "y":
y = 1-k
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Substitute into x+y = k to solve for "x":
x + 1-k = k
x = 2k+1
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Point of intersection: (2k+1 , 1-k)

Answer 2

I tried that, it's wrong.

Answer 3

BTW these are three different problems.

Answer 4

x= 2k-1

Answer 5

(2k-1,1-k)

Answer 6

Minus? Let me plug it in.

Answer 7

Cool, thanks

Answer 8

yw

Answer 9

Could you help with the other two? Please

Answer 10

1. Multiply the second equation by -2
2. Add the result to the first equation
3. Solve for x