Question

Спростіть вираз При х= 5/12
-4(2,3х-3)-(5-2,6х)+3(0,6х-2)

Answer 1

Ответ:

–4(2,3х-3)-(5-2,6х)+3(0,6х-2)= –9,2х+12–5+2,6х+1,8х–6= –4,8х+1

При х=5/12

$- 4.8 \times \frac{5}{12} + 1 = - \frac{48}{10} \times \frac{5}{12} + 1 = - 2 + 1 = - 1$

Ответ: –1