Solving equation 9 (x-1) ^ 3 + 72 = 0

Solving equation 9 (x-1) ^ 3 + 72 = 0

9(x-1)³=-72
(x-1)³=-8
x-1=-2
∴x=-1

2 (x-1.5) = 5.4 (x + 2.4) times 3 = 9.68 times (x + 2.9) = 72
(1) 2（x-1.5）=5.4
(2) (x + 2.4) times 3 = 9.6
(3) 8 times (x + 2.9) = 72

1) 2 (x-1.5) = 5.42x-1.5 * 2 = 5.42x-3 = 5.42x = 5.4 + 32x = 8.4x = 8.4 divided by 2x = 4.22) (x + 2.4) × 3 = 9.63x + 2.4 * 3 = 9.63x + 7.2 = 9.63x = 9.6-7.23x = 2.4x = 2.4 divided by 3x = 0.83) 8 × (x + 2.9) = 728x + 2.9 * 8 = 728x + 23.2 = 728x = 72-23.28x = 48.8x = 48.8 except

9.72/X=3.

x=9.72\3.6 x=2.7