Question

5 increased by half a number is 11

Answer 1

12

Explanation:

let the unknown number is x.

As said in the question, we add half of x to 5 and their sum equals to 11.

steps:

1. write the equation.
2. do the L.C.M.
3. transfer 2 to the other side of the equal sign
4. keep x as the subject and do the subtraction on the other side of the equal sign

`5 + (1)/(2)x = 11\\(10+x)/(2) = 11\\10 + x = 22\\x = 22-10\\x = 12`