Question

Dada a equação x + y = 3,calcule o valor de y considerando os valores de x apresentados nos itens a seguir.

a) x=0 b) x=-1 c) x=4

Answer 1

$x + y = 3\\\\\\\\\\ a)x=0\\\\\\ 0 + y = 3\to\\\\ y=3$





$b)x=-1\\\\\\ x + y = 3\to \\\\ -1 + y = 3\to \\\\ y=3+1\to\\\\ y=4$





$c)x=4\\\\\\ x + y = 3\to\\\\ 4 + y = 3\to \\\\ y=3-4\to\\\\ y=-1$

Answer 2

=> X + Y = 3

..para x=0 

=> 0 + Y = 3

...para X = - 1

- 1 + Y = 3

Y = 3 + 1

Y = 4

..para X = 4

4 + Y = 3

Y = 3 - 4

Y = -1

Espero ter ajudado