Question

1. Ali thinks of a number, adds 5 to it, subtracts 7 from the double of th
sum, the result is 9. Find the number Ali thought.

Answer 1

Answer:

3

let the number that Ali thought be X

[{2(X+5)}-7]=9

{2(X+5)}=16

2X+10=16

2X = 6

X=3