Question

Which value of x makes this inequality true ? x+9<4x
Answers: 1, 4, 3 , or 2

Answer 1

4

Explanation:

x+9<4x

Subtract x from each side

x-x+9<4x-x

9 < 3x

Divide each side by 3

9/3 < 3x/3

3 < x

X must be greater than 3