how to translate the sum of half a number and 13 is 9

Answer 1

Hi Fsaef, let x represent the number. Then x / 2 would be 1 / 2 of the number.

Equation to solve:

x / 2 + 13 = 9

Multiply the entire equation by 2:

x + 2 * 13 = 2 * 9

x + 26 = 18

Subtract 26 from both sides:

x = -8

The original number is -8.

Questions?