Question

1/9 (9a-9)+2 1/3(6a-6)-1

Answer 1

1/9(9a-9)+2=1/9*9/1a-1/9*(-9/1)+2=1a-1+2=1a+1

1/3(6a-6)-1=1/3*6/1a-1/3*(-6/1)-1=2a-2-1=2a-3

Answer 2

Ответ:

Пошаговое объяснение:

1/9 (9a-9)+2 1/3(6a-6)-1 = a - 1 + 7/3(6a - 6) - 1 = a - 1 +  14a - 14 - 1 = 15a - 16

Answer 3

To simplify the expression, let's start by simplifying each term separately.

1/9 (9a - 9): First, distribute 1/9 to each term inside the parentheses: (1/9) * 9a = a (1/9) * (-9) = -1

So, 1/9 (9a - 9) simplifies to a - 1.

2 1/3 (6a - 6): First, convert the mixed number 2 1/3 to an improper fraction. 2 1/3 = 2 + 1/3 = 6/3 + 1/3 = 7/3

Next, distribute 7/3 to each term inside the parentheses: (7/3) * 6a = 42a/3 = 14a (7/3) * (-6) = -42/3 = -14

So, 2 1/3 (6a - 6) simplifies to 14a - 14.

Finally, putting the simplified terms together: a - 1 + 14a - 14

Combining like terms: a + 14a - 1 - 14

Combining further: 15a - 15

So, the simplified expression is 15a - 15.