Algebra 1
2 marks · NormalSimplify the expression .
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10a - 2b
Also accept: 10a + (-2b); 10a–2b; 10a-2b
Common mistakes: 7a + 3a = 21a; Not changing sign of 4b when collecting
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Marking points
M1 · 1 mark · M: Collecting like terms
A1 · 1 mark · A: Correct simplified answer ()
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