Question

Pls answer for points and brailliest answer

Answer 1

10

Explanation:

Let's call Ahmed's number x,

• If he multiplies it by 2, it becomes 2x
• He then divides it by 5 so it would be 2x ÷ 5
• The result was 4, so it would be written as 2x ÷ 5 = 4

To solve for x,

• First, multiply both sides by 5: 2x = 20
• Finally divide both sides by 2 to get x on its own: x = 10
• Answer: He was thinking of the number 10

You could also work backwards:

If he ×2 then ÷5, you would ×5 then ÷2 (doing the opposite):

• 4 × 5 = 20
• 20 ÷ 2 = 10

Hope this helps!