Question

Solve: x-2y+z-w=0
x+y-2z+3w=0
4x+y-5z+8w=0
5x-7y+2z-w=0

Answer 1

Answer:

The answer is 11x -7y -4z +9w

Step-by-step explanation:

1st table (up to down)

x +x +4x +5x

x +x is 2x

2x +4x is 6x

6x +5x is 11x

2nd table (up to down)

-2y +y +y -7y

-2y +y is -1y = -y

-y +y is 0

0 -7y is -7y

3rd table (up to down)

z -2z -5z +2z

z -2z is -1

-1z -5z is -6z

-6z +2z is -4z

4th table (up to down)

-w +3w +8w -w

-w + 3w is 2w

2w +8w is 10w

10w -w is 9w

so the answer is 11x -7y -4z +9w

Hope this helps you!!