{x + y = 5
{-x + y = -2
y = 5 - x
y = - 2 + x
5 - x = - 2 + x
- x - x = - 2 - 5
- 2x = -7
x = 7/2
x + y = 5
7/2 + y = 5
y = 5 - 7/2
y = 3/2
Respuesta:
x = 7/2
y = 3/2
2x - 3y = 0
4x + y = 14
x = 0 + 3y/2
x = 14 - y/4
3y/2 = 14 - y/4
4(3y) = 2(14 - y)
12y = 28 - 2y
12y + 2y = 28
14y = 28
y = 28/14
y = 2
x = 0 + 3y/2
x = 3(2)/2
x = 3
Respuesta:
x = 3
y = 2