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8x-4=26
8x=26+4
8x=30
x=30/8
8x - 4 = 26
8x = 26 + 4
8x = 30
X = 30/8, simplificando
X= 15/4
Segunda ecuación
9y + 10 = 79
9y = 79-10
9y = 89
Y = 89/9