Question

Ayudaaaa :,(
mediante sistema de ecuaciones 2x2
5x-3y=14
2x+4y=16

x+y=15
x-y=5

gracias :)

Answer 1

1.

(5x - 3y = 14) 4

(2x - 4y = 17) 3

-------------------------

20x - 12y = 56 ↓+

6x + 12y = 48

-------------------------

26x = 104

x = 4

2x + 4y = 16

8 + 4y = 16

4y = 16

y = 4

2.

x + y = 15 ↓+

x - y = 5

--------------------

2x = 20

x = 10

x + y = 15

10 + y = 15

y = 5