Answer:
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