Question

23 - x < 23(1 + 7x)

What does x equal???

Answer 1

`23 - x < 23 + 161x \\ - x - 161x < 23 - 23 \\ - 162x < 0 \\ ( - 162x)/( - 162) < (0)/( - 162) \\ x > 0`

without given any restriction x is all the numbers greater than 0.

NOTE THAT THE SIGNS >< CHANGE DIRECTION WHEN YOU MULTIPLY OR DIVIDE BY A NEGATIVE NUMBER.