Answer:
(x, y, z, w) = (3, 7, 6, 8)
Explanation:
Your list equation seems to resolve to 6 equations:
- x = 2x -3
- 6 = z
- 2x -1 = 5
- y = 7
- 9 = w +1
- 9y = 8y +7
The first equation tells you ...
0 = x -3 . . . . . subtract x
3 = x . . . . . . . add 3
We can check this in the third equation:
2(3) -1 = 5 . . . true
The fifth equation tells you ...
8 = w . . . . . . . subtract 1
We can check the value of y in the last equation:
9(7) = 8(7) +7 . . . true
The variable values are ...
(x, y, z, w) = (3, 7, 6, 8)