Respuesta :

Answer:

y=-3

Step-by-step explanation:

-2x+7y=-25

put x=2 in the above equation

-2(2)+7y=-25

-4+7y=-25

adding 4 on both sides

-4+4+7y=-25+4

7y=-21

dividing 7 on both sides

7y/7=-21/7

y=-3