Solve
First, place the unknown x on the left.
Then, solve for x.
3x+15=0
<=> 3x=-15
<=> x= -15/3
<=> x= -5
Vậy nghiệm của đa thức 3x+15 là -5
1 Backpack + 3 Textbooks + 2 Notebooks = 10.5 pounds
His Backpack Weighs 2.5 pounds
Answer:
b
Step-by-step explanation:
i just did it
Answer:
870
Step-by-step explanation:
Assuming you mean
30
Using the definition
n =
where n! = n(n - 1)(n - 2) ..... 3 × 2 × 1
Then
30 = =
Cancel the terms 28(27)... on numerator/ denominator, leaving
30 = 30 × 29 = 870