Решение:
- 1) -6x = 48 \implies x = 48 / (-6) = -8
- 2) 0,8x = -3,2 \implies x = -3,2 / 0,8 = -4
- 3) -1,6x = -6,4 \implies x = -6,4 / (-1,6) = 4
- 4) 1/7x = -3/14 \implies x = (-3/14) * 7 = -3/2
- 5) -4/9x = -1/7 \implies x = (-1/7) * (-9/4) = 9/28
- 6) -2 1/4x = 9/16 \implies -9/4x = 9/16 \implies x = (9/16) * (-4/9) = -4/16 = -1/4
Ответ: 1) x = -8; 2) x = -4; 3) x = 4; 4) x = -3/2; 5) x = 9/28; 6) x = -1/4.