Today we looked at Changing the Subject of a Formula. A formula is an equation, which has a LHS = RHS. The rule is always do the same thing to both sides, you can:
These questions may also require you to Factorise to isolate a variable.
For next week try the marked questions on the printed sheets and try the Khan Academy questions linked below.
- multiply both sides by the same amount
- divide both sides by the same amount
- subtract the same amount from both sides
- add the same amount to both sides
- square both sides
- square root both sides
- swap sides
These questions may also require you to Factorise to isolate a variable.
For next week try the marked questions on the printed sheets and try the Khan Academy questions linked below.
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