Question

HELP⁉️

What is the least integer value in the solution set to 7(3x-1)<4x

Answer 1

x = 3

Explanation:

x = -1

7(3^(‐1 - 1)) <= 4^-1

7(3^-2) <= 1/4

7/9 <= 1/4

no, wrong.

x = 2

7(3^(2 ‐ 1)) <= 4²

7(3¹) <= 16

21 <= 16

no, wrong.

x = 3

7(3^(3 - 1)) <= 4³

7(3²) <= 64

7×9 <= 64

63 <= 64 correct

so, 3 is the correct answer.