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1) 4a + 3c – 3a – 4c;




2) 3(3k – c) – (3c - k);




3) 4(y – a) - 5(2a – y);




4) 10 – ( – (2x + 5) – 4).




1) 3y – ( - 4a) + 2y – 3a;




2) 3(14 – k) – 2(k + 2);




3) 13(a – y) - 12( – y + a);




4) 4 - 2x - (5 – (3x + 2)).


1) 4h – 8f + 2f – 12h;


2) 3h – (– 2 + h) - 12;




3) - (– 45k + 1) – 2(30k + 5);


4) x + 2 - (7x  – 1 – (x + 2)).
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