Question

Use the distributive property and properties of equality to solve for n.
3(–4n – 9) = 21

Answer 1

Answer:

n = - 4

Step-by-step explanation:

3(-4n - 9) = 21

3(-4(-4) = 16 - 9) = 21  ( two negatives multiplied makes a positive)

3(16 - 9 = 7) = 21

3(7) = 21