A unit fraction is a fraction whose numerator is 1.
+ 19 on both sides, -19 becomes 0, 1 becomes 20 x=20
Answer:
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253. First, I squared 8, to get 64, then multiplied that by 12. I subtracted 9 from this because 3x3 is 9 to get 759. Then, divide this by 3 to get 253. Hope this helped!