а) 11/x-2=11/2
б) 7/x+6 = -7/6
- а) 11/х — 2 = 11/2 11/х = 11/2 + 2 11/х = 11/2 + 4/2 11/х = 15/2 х = 11 : 15/2 х = 11 * 2/15 х = 22/15 11 : 22/15 — 2 = 11/2 11 * 15/22 — 2 = 11/2 1/1 * 15/2 — 2 = 11/2 15/2 — 2 = 11/2 15/2 — 4/2 = 11/2 11/2 = 11/2б) 7/х + 6 = — 7/6 7/х = — 7/6 — 6 7/х = — 7/6 — 36/6 7/х = — 43/6 х = 7 : (- 43/6) х = 7 * (- 6/43) х = — 42/43 7 : (-42/43) + 6 = — 7/6 7 * (- 43/42) + 6 = — 7/6 1/1 * (- 43/6) + 6 = — 7/6 — 43/6 + 6 = — 7/6 — 43/6 + 36/6 = — 7/6
— 7/6 = — 7/6