Question

Resolva pelo método da adição
2x+3y= 0
4x-y= -14

Answer 1

x igual a -3
y igual a 3

Answer 2

2x + 3y = 0  ~(-2)
4x - y = -14

-4x - 6y = 0
4x - y = -14
-----------------
-7y = -14  (-1)
7y = 14
y = 14/7
y = 2

---------------
2x + 3 . 2 = 0
2x + 6 = 0
2x = 0 - 6
2x = -6
x = -6/2
x = -3

S= {-3, 2}