If x is zero, is the following true?
9x - 20 < 4x < x + 27
In the back of your books write down at least 10 values of x which satisfy this inequality statement.
"<" means "is less than"
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When x is zero the statement is true.
Here are ten values of x which make the statement true:
3, 2, 1, 0, -1, -2, -3, -4, -5, -6,
there are of course many other values which make the statement true.
An inequality like this can be solved by splitting it into two parts:
|9x - 20 < 4x
5x < 20
x < 4
|4x < x + 27
3x < 27
x < 9
So the complete answer is x < 4
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