Subject of a formula

Subject of a formula – It is the variable everything is equal to (it’s the letter on its own).

The variable everything in an equation is equal to is the subject of a formula

Todays subject will be how to write a letter.

Example 1

$x=2y+4z$

‘x’ is the subject of the formula because it is the LETTER everything is equal to.

Example 2

Rearrange the following equation to make $C$ the subject.

$A = BC-3D$

Answer: $C=(A+3D)/B$

Now $C$ is the subject of the formula.