Question

Помогите пжпжпжпж номер 87,88

Answer 1

Ответ:

1) 87...

$1)0.3x = 6 \\ x = 20 \\ 2)1.3x = - 1.69 \\ x = - 1.3 \\ 3)0.7x = 49 \\ x = 70 \\ 4)10x = 0.5 \\ x = 0.05$

2)88...

$1)8x = 8 \\ x = 1 \\ 2) \frac{1}{4}x = 16 \\ x = 64 \\ 3) {3}^{2}x = 243 \\ x = 27 \\ 4)16x = 16 \\ x = 1$