Question

Calcule o valor de "y" quando x=2 e o valor de "x" quando y=3
X+y=19

Answer 1

x=2
x+y=19
2+y=19
y=19-2
y=17

y=3
x+y=19
x+3=19
x=19-3
x=16

Answer 2

Y quando x=2 -> x+Y=19 -> 2+y=19 -> y= 19-2 -> y=17

x quando y=3 -> x+y=19 -> x+3=19 -> x=19-3 -> x=16