Question 668558
Establish variables
x = NC
y = NY
z = OK
...
Given
x = y + 22000
y = z - 187000
x+y+z=437000
...
Rearrange y=z-187000 as z = y+187000
...
Solve for y
y+22000 + y + y+187000 = 437000
3y + 209000 = 437000
3y = 437000 - 209000
3y = 228000
{{{highlight_green(y = 76000)}}} in NY
...
Solve for x
x = 76000 + 22000 = {{{highlight_green(98000)}}} in NC
...
Solve for z
z = 76000 + 187000 = {{{highlight_green(263000)}}} in OK

.....................
Delighted to help.
-Reading Boosters
Wanting for others what we want for ourselves.
www.MyHomeworkAnswers.com