Changing the subject with more complex formula

12 questions

1. The subject of a formula is a variable expressed in terms of the other __________.
2. x^2 is not the subject of the equation x^2=9-y^2. Why not?
3. Which of these are rearrangements of the equation 5e-7=2d ?
4. Which two inverse operations should you perform to both sides to solve the equation 6x+7=49?
5. Select the expressions that are equivalent to {1\over3}(y-5).
6. Match each expression to its description.
7. Performing the inverse operation \div7 would make x the __________ of the equation 7x=y.
8. Some Oak pupils are rearranging the equation 5e-f=14 to make e the subject. Who has a correct rearrangement?
9. Match each formula to the correct rearrangement with d the subject.
10. Make x the subject of the equation y=7x^2.
11. Make x the subject of the equation y={7\over{x^2}}.
12. Match each formula to the correct rearrangement with x the subject.

License: OGL