Starter quiz
- is the ______ of .
- opposite
- fraction
- reciprocal ✓
- product
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- Expand .
-
-
- ✓
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-
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- Expand .
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-
-
-
- ✓
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- The solution to is ______.
- '-2' ✓
- Solve .
- ✓
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-
-
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- Solve .
-
-
-
- ✓
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Exit quiz
- is an example of ______.
- an expression
- an unknown
- an equation ✓
- a substitution
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- Which of these show a correct method and solution for the equation ?
- , therefore
- , therefore ✓
- , therefore and
- , therefore and ✓
- , therefore and
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- The solution to is ______.
- '30' ✓
- Solve .
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-
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- ✓
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- Which is the most efficient start to solving the equation ?
- multiply out the brackets
- divide both sides by
- multiply both sides by
- multiply both sides by ✓
- multiply both sides by
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- The solution to the equation is ______.
- '5' ✓
Worksheet
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Presentation
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Lesson Details
Key learning points
- It is possible to divide by the coefficient of the bracket first when solving an equation.
- When there are common factors this may be the most efficient method.
- When the coefficient is a fraction it may be helpful to rewrite the equation.
- It is possible to expand the bracket before solving an equation.
- You will need to be able to make decisions about the most efficient method to a solution.
Common misconception
That all brackets have to be expanded before we solve an equation with brackets it in.
How would you solve ? You would divide both sides by . So why not start with 'divide ' when solving ?
Keywords
Equation - An equation is used to show two expressions that are equal to each other.
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