First step you can do is to that the LCM of both sides to eliminate the denominator which is equal to 400.
Now, your equation should look like this:
250(x+1) + 240(1-x) = 40(2x-3) - It's time to simplify things after this step
250x + 250 + 240 - 240x = 80x - 120 - Add all x's and the constant
10x + 490 = 80x - 120 - add 120 on both sides
10x + 610 = 80x - minus 10x on both sides
610 = 70x - divide 70 on both sides and you will get estimate of
x = 8.714286