-9 - 9 * (-8) / 9
-9 - 9 * (-8) / 9 = -9 + (9 * 8) / 9
Now, according to the order of operations (PEMDAS/BODMAS), we perform the multiplication before addition/subtraction.
-9 + (9 * 8) / 9 = -9 + 72 / 9
Next, we perform the division.
-9 + 72 / 9 = -9 + 8
Finally, we perform the addition.
-9 + 8 = -1
So, -9 - 9 * (-8) / 9 equals -1.
To calculate the expression -9 - 9 * (-8) / 9 step-by-step, follow the order of operations (also known as PEMDAS):
1. Start with the multiplication:
-9 - (9 * (-8)) / 9
Multiply 9 and -8:
-9 - (-72) / 9
2. Proceed with the division:
-9 - (-72) / 9
Divide -72 by 9:
-9 - (-8)
3. Finally, perform the subtraction:
-9 - (-8)
Change the double negative to addition:
-9 + 8
Subtract -9 and 8:
-1
Therefore, the value of -9 - 9 * (-8) / 9 is -1.