Найдите корни уравнений (846—848):
846. 1) 17 – 2,6 = 3(0,8 + 3х); 2) 8 + 5, 1x = 49(1 + 0,1x)
3) 38(0,1х + 1) = 40 — 3,2x; 4) 63х – 13,7 = 13(0,1 + 5х).​
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