Math Riddle #2

Here's an easy one:

X equals four plus three times fifty minus eight hundred sixty four divided by eighteen.

Y equals X divided by two minus 52 times X.

Z equals two times X times Y minus thirty five divided by seven plus twenty eight.

Calculate the values for X, Y, Z.

 

X: 106
Y: -5459
Z: 1157308

probably messed up on Y

 

X = 4 + 3 x 50 - 864 / 18 = 4 + 150 - 48 = 106

Y = X / 2 - 52 x X = 106 / 2 - 52 x 106 = 53 - 5512 = -5459

Z = 2 x X x Y - 35 / 7 + 28 = 2 * 106 * -5459 - 35 / 7 + 28 = -1157308 - 35 / 7 + 28 = -1157308 - 5 + 28 = -1157285