Question

21 ≤ 2x + 3 =
How do you work this out? And what is the answer? :)

Answer 1

Just use app called Socratic will help out

Answer 2

Answer:

9

Step-by-step explanation:

• 21≤2x+3
• 21-3≤2x
• 18≤2x
• divide both side by 2
• therefore the answer
• x≥9