Question

-2x-(6x-5y)+7-8y при x=0,12 y=1,6

Answer 1

Ответ:

Пошаговое объяснение:

-2x-(6x-5y)+7-8y =-2х-6х+5у+7-8у=-8х-3у+7

-8*0.12-3*1.6+7=-0.96-4.8+7=1.24

Answer 2

To find the value of the expression -2x - (6x - 5y) + 7 - 8y when x = 0.12 and y = 1.6, simply substitute the given values into the expression and perform the calculations.

Let's proceed step-by-step:

1. Substitute x = 0.12 and y = 1.6 into the expression:

-2(0.12) - (6(0.12) - 5(1.6)) + 7 - 8(1.6)

2. Perform the operations inside the parentheses:

-2(0.12) - (0.72 - 8) + 7 - 12.8

3. Perform the remaining arithmetic:

-0.24 - (-7.28) + 7 - 12.8

4. Simplify further:

-0.24 + 7.28 + 7 - 12.8

5. Continue simplifying:

6.04 - 5.8

6. Calculate the final result:

0.24

So, when x = 0.12 and y = 1.6, the value of the expression is 0.24.