Question

como resuelvo 2+3y=5;x+5y=2 metodo reduccion

Answer 1

$3y+2 5y +x=8y +3x$

Answer 2

1) 2x + 3y = 5   (1)
2) x + 5y = 2     (-2)

2x + 3y = 5
-2x - 10y = - 4
-------------------
0x - 7y = 1


- 7y = 1

y = -1/7

Reemplazo y = - 1/7 en ecuación 1

2x + 3y = 5 

2x + 3 (-1/7) = 5

7 (2x) + (-3)
---------------- = 5
         7


14x - 3
--------- = 5
   7


14x - 3 = 35

14x = 35 + 3

14x = 38

x = 38/14

x = 19/7

Solución : 

x = 19/7
y = -1/7