Give an example that shows why you need to reverse the sign when dividing or multiplying an inequality by a negative number.

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this is hard

2 - 3

Step-by-step explanation:

∵ 2 < 3

If we divide each side by - 1

∴ - 2 < - 3 but it's not true

∴ we must reverse the sign of inequality

∴ - 2 > - 3

similar:

∵ 25 > 20

If we divide each side by - 5

∴ - 5 > - 4 it's not true

∴ we must reverse the sign of inequality

∴ - 5 < - 4