{x + y = 24
{x - y = 8
{x = 8 + y
8 + y + y = 24
8 + 2y = 24
2y = 24 - 8
2y = 16
y = 8
x = 8 + 8
x = 16
Besitos OvO
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Método: Sustitución
{x + y = 24
{x - y = 8
{x + y = 24
{x = 8 + y
Para y...
8 + y + y = 24
8 + 2y = 24
2y = 24 - 8
2y = 16
y = 8
Para x...
x = 8 + 8
x = 16
(x, y) = (16, 8)
R// El número menor es 8
Besitos OvO