So firstly, subtract x on both sides: [tex] -2y=-x+3 [/tex]
Next, divide -2 on both sides, and your answer will be y = 1/2x - 3/2 , or the last option.
The objective is to make y the subject.
x - 2y = 3
Take away x from both sides:
-2y = -x + 3
Multiply by -1 on both sides:
2y = x - 3
Divide both sides by 2:
y = 1/2 x - 3/2
Answer: (D) y = 1/2 x - 3/2