Twice the difference of a number and 5 is equal to 9 .

Question

Can someone plz help me. Can you translate the sentence into an equation. Thank you sm

Answer 1

Let x = the number

2x - 5 = 9

2x = 14

x = 7

 

Answer 2

Actually, the question is looking for twice the difference, not twice the number, so:

 

Let x = the number

2(x-5) = 9

2x - 10 = 9

2x = 19

x = 9.5