The sum of three-fourths of a number and 1 is negative 5

x=-5.333333

Step-by-step explanation:

The sum of three-fourths of a number

Let the number be x

3/4 of the number

3/4 of x

3/4 (x)

3x/4

The sum of 3x/4 and 1 is negative 5

3x/4-1=-5

Make 3x/4 the subject

3x/4=-5+1

3x/4=-4

Cross multiply

3x=-4 (4)

3x=-16

x=-16/3

x=-5.333333