Question

-3(1,2-2x-2)-(4-4,6x)+6(6,2x-1) x=-15/22 15баллов

Answer 1

Ответ:

Пошаговое объяснение:

1)-3(1.2-2x-2)= -3.6+6x+6= 2.4+6x

2)2.4+6x-4+4.6x=10.6x-1.6

3)6(6.2x-1)= 37.2x-6

4)10.6x-1.6+37.2x-6= 47.8x-7.6

47.8(-15/22)-7.6= 617/22

Answer 2

To calculate the expression with the given value of x, let's substitute x = -15/22 into the expression and perform the operations step by step:

Expression: -3(1, 2 - 2x - 2) - (4 - 4, 6x) + 6(6, 2x - 1)

Substitute x = -15/22:

-3(1, 2 - 2(-15/22) - 2) - (4 - 4 * 6, 6 * (-15/22)) + 6(6, 2 * (-15/22) - 1)

Now, perform the calculations:

-3(1, 2 + 30/22 - 2) - (4 - 24, -90/22) + 6(6, -30/22 - 1)

-3(1, 2 + 30/22 - 2) - (-20, -45/11) + 6(6, -75/22)

-3(1, 30/22) - (-20, -45/11) + (36, -225/22)

-3(1, 15/11) + (20, 45/11) + (36, -225/22)

(-3, -45/11) + (20, 45/11) + (36, -225/22)

Now, add the components:

(-3 + 20 + 36, -45/11 + 45/11 - 225/22)

(53, 0)

So, the result of the expression with x = -15/22 is (53, 0).