Question

WILL GIVE SHINY MEDAL

3x less than or equal to 21

A) x less than or equal to 7
B) x greater than or equal to 7
C) x less than or equal to 18
D) x greater than or equal to 18

Answer 1

\(\rm \color{#20bd23}{3x \le 21}\)

All you need to to is divide both sides of the equation by 3

\(\rm \color{#20bd23}{3x\div 3 \le 21\div 3}\)

\(\rm \color{#20bd23}{x \le 21\div 3}\)

Answer 2

Now what is \(\rm \color{#20bd23}{21\div 3}\)?

Answer 3

7

Answer 4

Correct, so \(\rm \color{#20bd23}{x \le 7}\)

Answer 5

Or x is less than or equal to 7

Answer 6

thx!