Mathematics, 28.06.2019 13:50, messyquestions

If 9x+2y^2−3z^2=132 and 9y+2y^2−3z^2=−12, then x−y = (a) 3 (b) 8 (c) 16 (d) 120 (e) 144

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If 9x+2y^2−3z^2=132 and 9y+2y^2−3z^2=−12, then x−y = (a) 3 (b) 8 (c) 16 (d) 120 (e) 144...