Respuesta :

Answer:

Y=5

Step-by-step explanation:

-10(y-4) +3y=5

-10y+40+3y=5

-7y+40=5

     -40  -40

-7y=-35

y=5

Answer:

x = 1

y = 5

Step-by-step explanation:

Substitute  x = y - 4 into -10x + 3y = 5

-7y+40=5

Solve for y in -7y  + 40 = 5

y = 5

Substitute y = 5 into x = y - 4

x = 1

Therefore

x = 1

y = 5