Question

The range of all real numbers x such that 2x − 5 < 7 and 4x + 10 > 6 is

a. (-1,6)
b. (-infinity, infinity)
c. an empty set
d. (6,-1)

Answer 1

2x - 5 < 7
2x = 12
x = 6

4x + 10 > 6
4x = - 4
x = - 1

( - 1 , 6 )

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