Question

0.3(3а-2.5)-5(3.8-а)+0.75​

Answer 1

Ответ:

5,9а - 19

Пошаговое объяснение:

0.3(3а - 2.5) - 5(3.8 - а) + 0.75​ = 0,9а - 0,75 - 19 + 5а + 0,75 = 5,9а - 19

Answer 2

To simplify the expression, let's break it down step by step:

0.3(3a - 2.5) - 5(3.8 - a) + 0.75

First, let's simplify the parentheses:

0.3 * 3a - 0.3 * 2.5 - 5 * 3.8 + 5 * a + 0.75

Multiply the coefficients:

0.9a - 0.75 - 19 + 5a + 0.75

Combine like terms:

(0.9a + 5a) - 19 - 0.75 + 0.75

Simplify further:

5.9a - 18.25

So the simplified form of the expression 0.3(3a - 2.5) - 5(3.8 - a) + 0.75 is 5.9a - 18.25.