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x = (94 - 5y)/6
3x + 2y = 80
3((94 - 5y)/6) = 80
(282 - 15y)/6 = 80
282 - 15y = 480
-15y = 198
y = -66/5
3x + 2y = 80
3x + 2(-66/5) = 80
3x - 132/5 = 80
(15x - 132)/5 = 80
15x - 132 = 400
15x = 532
x = 532/15