Question 7 of 17 in Algebra 4

Algebra 4

2 marks · Normal

Simplify the expression: 3(x + 5) − 2(x − 4)

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x + 23

Must show: Expansion, Collection of like terms

Also accept: 1x + 23

Common mistakes: Sign error on −2(x − 4); Not expanding brackets

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Marking points

M1 · 1 mark · Expands both brackets correctly.

A1 · 1 mark · Simplifies fully to x + 23.

Worked solution

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