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2x + 5y = 16 3x - 7y = 24
2x = 16 - 5y 3x = 24 + 7y
x = 8 - 5/2 y x = 8 + 7/3 y
igualando
8 - 5/2y = 8 + 7/3 y
8 - 8 = 7/3 y + 5/2 y
0 = 29/6 y
0 = y
reemplazando
x = 8 - 5/2(0)
x = 8 sol (8,0)