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