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## Mathematics (GCSE) - Foundation Tier

### Winter 2014 | Question 12 (4353/01)

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(a) Fairly well answered for correctly clearing the brackets with many candidates getting a total of B1 for the question.

If 2x = 17 obtained then it was usually followed by x = 8.5

10x = 31 and 10x = 17 was common errors seen after clearing the bracket and to a much lesser extent 2x = 31.

(b) Fairly well answered with many examples of correct embedded answers seen. It was usually a case of both marks or no marks.

x/5 = 9, x = 1.8 seen a few times

## Tags

• Algebra
• Linear equations

Z7 Marks

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## Mathematics (GCSE) - Higher Tier

### Summer 2015 | Question 1 (4370/06)

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Although part (a) was fairly well answered, there were a number of errors with signs in particular. It is always worth checking if the answer found actually works in the equation.

Part (b) was sometimes given as an embedded answer.

In part (c), many candidates multiply out the brackets rather than divide both sides by 2 to start. The division method leads to the answer in fewer stages.

Some candidates had difficulty working from -2x = -16, with some misconceptions about manipulation or division by negative numbers.

## Tags

• Algebra
• Linear equations

Z3 Marks

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## Mathematics (GCSE) - Foundation Tier

### Winter 2014 | Question 9 (4362/01)

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Candidates at the Foundation level find setting up an equation from given information difficult, however, more candidates than usual engaged with the idea of this question

## Tags

• Algebra
• Linear equations

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## Mathematics (GCSE) - Foundation Tier

### Summer 2016 | Question 16 (4353/01)

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This question was in common with the Higher Tier.

Part (a) had an equation with a fraction. The correct procedure was to multiply both sides by 6 then subtract 5. Some candidates reversed this process and were awarded one of the two marks providing no other error occurred.

Part (b) required the solution of 5(2x – 3) − 8x = 10.

The first mark was awarded for the expansion of the bracket and was well done. Candidates who did not fully understand how to solve equations worked out 10x + 8x, on the left side of the equation, thinking that the sign of the 8x needed to change. This was a common error. Providing no other error occurred it was possible to obtain two marks out of three in this case.

## Tags

• Algebra
• Linear equations

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## Mathematics (GCSE) - Foundation Tier

### Autumn 2015 | Question 16 (4353/01)

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This question was in common with the Higher Tier.

This was a traditional equation question with the variable on both sides. Where candidates knew the rules of solving equations full marks were awarded. Weaker candidates confused addition and subtraction and did not work with two sides of an equation. This question, along with question 12, highlights a weakness in the skills of algebra at this level.

## Tags

• Algebra
• Linear equations

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