Let's simplify the equation step by step:

Start by distributing 36 to (x - 753):

36(x - 753) = 36x - 27108

Substitute the simplified expression back into the equation:

73 - (10 + z) = 36x - 27108 + 209

Simplify the equation further:

73 - 10 - z = 36x - 26999

63 - z = 36x - 26999

Next, isolate z by subtracting 63 from both sides of the equation:

-z = 36x - 26999 - 63

-z = 36x - 27062

Finally, multiply both sides by -1 to get rid of the negative sign in front of z:

z = -36x + 27062

Therefore, the simplified equation is z = -36x + 27062.