To manipulate the equation y = 7x - 12 so that it is written in terms of x, we need to isolate x on one side of the equation.
Starting with the equation y = 7x - 12, we can rearrange it as:
y + 12 = 7x
Now, dividing both sides of the equation by 7, we get:
(y + 12)/7 = x
So, the equation equivalent to y = 7x - 12 in terms of x is:
c. x = (y + 12)/7