Respuesta :

alaixa
x - y = 4

-y = -x + 4

-y ÷ -1 = (-x ÷ -1) + (4 ÷ -1)

y = x - 4 (y equals the entire ending equation)

___________________

x - 2y = 10

-2y = -x + 10

-2y / -2 = (-x ÷ -2) + (10 ÷ -2)

y = 0.5x + -5 (y equals the entire ending equation)

x doesn't have an equality on these kinds of equations