Respuesta :
The value of x must be less than -6. From the set of values, the values less than -6 are -7, -8, -9.... The correct sets is {......,-8, -7, -6}
Given the inequality expression
x - 9 < -15
Add 9 to both sides
x - 9 + 9< -15 + 9
x + 0 < -15 + 9
x < -15 + 9
x < -6
Hence the value of x must be less than -6. From the set of values, the values less than -6 are -7, -8, -9.... The correct sets are {......,-8, -7, -6}
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