Question

3×+4y=10
x-2y=0
resolver esses sistema

Answer 1

Olá bom dia!

Resolução do sistema:

{3x + 4y = 10
{x - 2y = 0 ×(2)
----------------------
{3x + 4y = 10
{2x - 4y = 0
____________________

{3x + 4y = 10
+ {2x - 4y = 0
-------------------
5x = 10
x = 10/5
x = 2
-------------------------
3x + 4y = 10
3.(2) + 4y = 10
6 + 4y = 10
4y = 10 - 6
4y = 4
y = 4/4
y = 1

S = {( x = 2 ; y = 1)}

Espero ter ajudado amigo =)