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Find the values of $x$ that satisfy $|0.4x - 0.8| = 2$.
Mathematics 9709 · AS & A Level · Algebra
Algebra — practice question
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “State the non-modulus form $(0.4x-0.8)^2=4$ or an equivalent one, or the matching pair of linear equations” …
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