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Solve each of the following simultaneous inequalities and illustrate your answers on a number line:
(a) 12-14x≤x≤2
(b) 12–x≥5≤2x–2
(c) -4x<6≤8x
(d) 3x-2≥-4≤-1-2x
(e) 6x-13≤17<8x-7
(f)2x+3>5x-3>-8