Question

решите плз срочно очень​

Answer 1

Объяснение:

$6 \times \frac{2}{3} - 8 \times \frac{5}{8} = 4 - 5 = - 1 \\ \\ - 0.8 \times 6 - 1 = - 4.8 - 1 = - 5.8 \\ 0.8 \times 6 - 1 = 3.8 \\ \\ 2x - 3y - 11x + 8y = 5y - 9x$

$5 \times (2a + 1) - 3 = 10a + 5 - 2 = 10 + 2 \\ 14x - (x - 1) + (2x + 6) = 14x - x + 1 + 2x + 6 = 15x - 7$