The word problem states: Two times a number, n minus 4 is greater than -48. What are the possible values for the number? Write an inequality, she, and graph all the possible solutions for n.
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2n-4>-48. Add 4 to each side: 2n>-44 making n>-22.
On a single axis, a graduated line extending at one end to the marked point -22 and the other end extending to infinity, represents the solution graphically.
The point marked -22 is not included since the inequality excludes the point, so you have to imagine this line without its starting point.
All numbers bigger (higher) than -22 are included in the solution, so, for example, zero is included, as are 22 and all real numbers including fractions and irrational numbers (like pi).
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