Question

(с-5.4)-(3с+0.6) при с=-2.1

Answer 1

с - 5.4 - 3с - 0.6

-2с - 6

4.2 - 6 = -1.8

Дайте пожалуйста , лучший ответ))))

Answer 2

Ответ:

-1,8

Пошаговое объяснение:

(с - 5.4) - (3с + 0.6) = с - 5,4 - 3с - 0,6 = -2с - 6

при с = -2,1      -2с - 6 = - 2 · (-2,1) - 6 = 4,2 - 6 = -1,8

Answer 3

To evaluate the expression "(с-5.4)-(3с+0.6)" when с = -2.1, you simply need to substitute the value of с into the expression and perform the arithmetic operations.

Let's calculate it step by step:

Step 1: Substitute с with -2.1 in the expression:

(-2.1 - 5.4) - (3 * -2.1 + 0.6)

Step 2: Perform the arithmetic operations:

(-7.5) - (-6.3)

Step 3: Simplify further:

-7.5 + 6.3

Step 4: Final evaluation:

-1.2

Therefore, when с = -2.1, the value of the expression (с-5.4)-(3с+0.6) is -1.2.