❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎❥︎
19 5 7 1
✯ 𝑿 = ------ = 2 --------- ✯ 𝑿 =------ = 2 -------
7 7 3 3
1 5 2
𝒀=------- 𝒀 =-------- =1--------
7 3 3
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