The sum of 5.75 and half a number is −5. What is the number?

Question

The sum of 5.75 and half a number is −5.

What is the number?

Answer 1

5.75 + x/2 = - 5

subtract 5.75 from both sides to get

x/2 = -5 - 5.75

x/2 = - 10.75

multiply both sides by 2

x = 2(-10.75)

x = -31.50 = the number

the number is negative 31 1/2