Answer:
x = -5
Step-by-step explanation:
let the number be x
"five times a number" : 5x
"Six more than five times a number" : 5x + 6
"twice the number" = 2x
"Six more than five times a number = 2x - 9
"Six more than five times a number" = "Six more than five times a number
5x + 6 = 2x - 9
5x - 2x = -9 -6
3x = -15
x = -15 / 3
x = -5
