Допоможіть даю 50!!!!!!!!!!
а) (13х – 2) – 3(5 + 2х) = –3(х + 1);
б) 12 – 2(2х – 5) = 4(11 + х) + 6(1 – х);
в) 1,6(х + 1) – (х – 1,8) = 0,1(2х + 17) – 0,7;
г ) 0,1(5х + 17) – 0,3(–3 – 15х) = 0,3(15 – х) + 0,1(105х + 111).
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