Question

Annie thought of a number. She then multiplied this number by 2 and then subtracted 4. Her final answer was 10. What number did she start with?

Answer 1

Annie thought of the number ; '7'

Explanation:

Let the no. be; 'x'

The no. multiplied with 2 = 2x

Then subtracted from 4 = 2x - 4

Final answer= 10

Thus, 2x - 4 = 10

Now lets solve the equation;

2x = 10 + 4 = 14

x = 14 divided by 2 = 7