10x - x - 17 + x/16^3
First simplify
10x - x = 9x
9x - 17 + x/16^3
16^3 = 16 x 16 x 16 = 4096
9x - 17 + x/4096
plug in -19 to the above expression
9x - 17 + x/4096
9(-19) - 17 + -19/4096
-171 - 17 - 19/4096
-188 - 19/4096 =
- 188 - 0.00463867187 = -188.00463867187
-188.00463867187 should be your answer
hope this helps