Question

1,4:0,4=12:0,4+3x
-18×(x+2,3)=18,54
Помогите пж

Answer 1

1)

$1.4 \div 0.4 = 12 \div 0.4 + 3x$

$3.5 = 30 + 3x$

$- 3x = 30 - 3.5$

$- 3x = 26.5$

$x = - \frac{26.5}{3} = - 8.33$

Ответ :

$- 8.33$

2)

$- 18 \times (x + 2.3) = 18.54$

$- 18x - 41.4 = 18.54$

$- 18x = 18.54 + 41.4$

$- 18x = 767.556$

$x = - \frac{767.556}{18} = - 42.642$

Ответ :

$- 42.642$