Answer:
x = -1
Step-by-step explanation:
x-1/2 = x-4/5 is ambiguous (subject to misinterpretation).
It should be written with parentheses or with proper fractions:
x - 1 x - 4
---------- = ----------
2 5
Cross multiplying results in 5x - 5 = 2x - 8, or 3x = -3. Then x = -1