Answer:
12
Step-by-step explanation:
6 * x = 72
x = 72 / 6
x = 12
The answer to the question
Is there any sums that you needed to solve this with?
Answer:

Step-by-step explanation:

You can get the gradient of the line perpendicular to this as you know the products of their gradients will be -1.

We have a gradient, and a point (6, 1), so we can now substitute our known values into the line equation.


Rearrange for y and collect terms.
