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8) 12x + 18y = 40 24 18x + 12y = 20
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di x + y = ....
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. + y2. + 16x + 8y + 63 = 0. 9) x2. + y2. - 18x - 12y + 81 = 0. 10) x2. + y2. + 12x - 18y + 47 = 0 ... 14x - 20y + 86 = 0 ... 40) (x - 16)2. + (y ...
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i dont know the answer! but please like my answer.
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