Four-variable linear equations are calculated using Cramer's rule:

aW + bX + cY + dZ = e

For example:

2W + 3X + 4Y - 5Z = - 6

6W + 7X - 8Y + 9Z = 96

10W + 11X + 12Y + 13Z = 312

14W + 15X + 16Y + 17Z = 416

Click Calculate to get the result.