Answer:
-1.25x + 0.2
Explanation:
(-0.5x - 0.4) - (0.75x - 0.6) = -0.5x - 0.4 - 0.75x + 0.6
= -0.5x - 0.75x - 0.4 + 0.6
= -1.25x + 0.2
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