Question

9x+1/3(-12-27x)-33.2, when x= -3 what is the simplified expression using the properties of operations?​

Answer 1

To simplify the expression 9x + 1/3(-12 - 27x) - 33.2 when x = -3, we substitute x, perform the operations, and obtain -37.2 as the simplified result.

Step-by-step explanation:

To find the simplified expression for 9x + 1/3(-12 - 27x) - 33.2 when x = -3, we will substitute -3 for x and then perform the operations step by step.

First, we simplify within the parentheses:

(-12 - 27(-3))

Now, we multiply -27 by -3:

(-12 + 81)

Adding the numbers inside the parentheses gives us 69, so we have:

9(-3) + 1/3(69) - 33.2

Continuing with the calculation:

-27 + 23 - 33.2

Finally, combine the like terms:

-27 + 23 - 33.2 = -37.2