Home > Subjects > Mathematics > Level 2 > 2.6 Algebra > Subject content > Changing the subject of the formula

- Subject: Mathematics
- AS: 91261
- Level: 2
- Credits: 4
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## Mathematics 2.6 Apply algebraic methods in solving problems

### Changing the subject of the formula

e.g.Make F the subject of the formula C =

Answer:

The subject of this formula is C because it is the letter on its own.

Changing the subject of a formula is the same as solving an equation.

C =

9C = 5(F – 32) Multiply each side by 9 to undo the dividing by 9 C = F – 32 Divide each side by 5 to undo multiplying by 5 C + 32 = F Add 32 to each side F = C + 32

For more information see:

Changing the subject of a formula - higher

Literal equations

Solving literal equations

Rearranging equations.