Question

Write the inequality and solve: The sum of 81 and a number is greater than 4 times the same number.
n<27
n < 18
n<9
n <3

Answer 1

Answer:

n<27

Step-by-step explanation:

Let the unknown number be n

$81 + n > 4 \times n \\ 81 + n > 4n$

Subtract -n from both sides

$81 + n - n > 4n - n \\ 81 > 3n$

Divide both sides of the equation by 3

$\frac{81}{3} > \frac{3n}{3} \\ 27 > n$