Distributive property because you are opening the parentesis and by doing that you are distributing
Answer:
n=5
Step-by-step explanation:
Simplifying 7n + -4 = 31
Reorder the terms: -4 + 7n = 31
Solving -4 + 7n = 31 Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right. Add '4' to each side of the equation.
-4 + 4 + 7n = 31 + 4
Combine like terms: -4 + 4 = 0 0 + 7n = 31 + 4 7n = 31 + 4 Combine like terms: 31 + 4 = 35 7n = 35
Divide each side by '7'. n = 5
Simplifying n = 5
A standard deviation of 0 means that nothing deviates, in other words all observations are 40. So 40 is the smallest, the largest, all of that!
#4 .
x + 8 - 8 = 7 - 8
It's "Subtraction property of equality"
It's correct
40 tens is basically 40 times 10 so 400
which is 4 hundreds