Question

considere a equação 2x + y = 16, calcule o par ordenado (x,y) considerado x = 2​

Answer 1

$x=2$

$2x+y=16$

$2\cdot 2+y=16$

$4+y=16$

$y=16-4$

$y=12$

$(x,y)=(2,12)$