4x-4>20
Step 1: Add four to both sides
4x-4+4>20+4
4x>24
Step 2: Divide both sides by 4
4x divided by 4 and 24 divided by 4
Answer: x>6
Kahal accidentally subtracted instead of adding. He made a mistake in step 2.
isosceles trapezoid
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When you add something, you gain more of it. Therefore, it should be positive 2
2
So the answer would be (4n)1/3