if x - 2y =1 what's y?

Question

i need the answers so then i can study for a test

Answer 1

x - 2y = 1  for y:

subtract x from both sides:

-2y = 1 - x

divide both sides by -2:

y = (1 - x)/-2 = (x - 1)/2

Answer 2

 

x - 2y =1

(x - 1) / 2 = y