Question

I think of a number i multiple it by 5 i then subtract 19 finally i double the result the final number is 22 what number did i think of​

Answer 1

To solve this problem, you read the problem backwards and to the opposite of that function.

• if it says double --> divide by 2        22 / 2 = 11
• subtract by 19 --> add 19                   11 + 19 =30
• multiply by 5 --> divide 5                   30 / 5 = 6

Thus the number that is thought of is 6

Hope that helps!

Answer 2

Unknown value: X

(5X-19)*2=22

5X-19=22/2

5X-19=11

5X=30

X=6