Question

Make k the subject of 7k=4k/3t-11t

Answer 1

multiply 4k to 7k. Then divide 3t-11t by 7x4. Then square root the rest

Answer 2

We are given the equation
`image`

In order to make k the subject, we will have to isolate k and express it in terms of the other variable, t. Let us begin:

Multiply both sides by 3t

`21kt=4k-33t^2`

Let us now subtract 4k from both sides:

`21kt-4k=-33t^2`

Take k out as the common factor on the left hand side of the above equation:

`k(21t-4)=-33t^2`

Divide both sides by 21t-4

`k=(-33t^2)/(21t-4)`

If we multiply the numerator and the denominator on the right side by -1 we will get, k to be as:

`k=(33t^2)/(4-21t)`

The above the given equation expressed with k as the subject.