September 2023 1 1 Report
Розкрийте дужки і зведіть подібні доданки: 1) –4(3a – 2) + 6(2a – 1); 2) 5(b – 3c) – 3(4b + c); 3) (7x – 2) ∙ (–4) + 2(4 – 3y); 4) 2,6(3a – 5) – 7,8(a – 10).
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