Respuesta :

Answer:

Step-by-step explanation:

3x + y = 5             —> 2 (3x + y = 5)

2x - 2y = -2          —>    2x - 2y = -2

6x + 2y = 10

2x - 2y = -2    then you add the like terms

8x = 8

———    then divide by 8

8

x = 1