Which of the following equations is equivalent to 1/4x - 1/2y = 8?
(a) 2x - 4y = 8
(b) 2x - 4y = 64
(c) 4x - 2y = 64

For this case we must find an equation equivalent to:

We add and on both sides of the equation:

We multiply by 4 on both sides of the equation:

Multiplying by 2 on both sides of the equation:

Option B

If you would like to solve the equation 2x / 5 + 1 = 7, you can do this using the following steps:

2x / 5 + 1 = 7
2x + 5 = 5 * 7
2x = 35 - 5
2x = 30
x = 15

If you would like to solve the equation x/3 - 4 = 10, you can do this using the following steps:

x/3 - 4 = 10
x/3 = 10 + 4
x/3 = 14
x = 14 * 3 = 42