Question

1-{x+y=2
{4x-2y=5
método de adição

Answer 1

x+y = 2 (.2)
4x-2y= 5

2x+2y = 4
4x-2y = 5

6x = 9
x = 9/6

y = 2-x
y = 2-9/6
y = 12-9/6
y = 3/6

S = (9/6; 3/6)