Question

Упростите выражение 5 6-ых *(12с+а)+ 2 3-их *(3с-2а)=

Answer 1

$\frac{5}{6} \times (12c + a) + \frac{2}{3} \times (3c - 2a) \\ \\ 10c + \frac{5}{6} a + 2c - \frac{4}{3} a \\ \\ 12c + \frac{5}{6} a - \frac{4}{3} a \\ \\ 12c - \frac{1}{2} a$