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Mathematics 21 Online
OpenStudy (anonymous):

Find the value of x?

OpenStudy (anonymous):

OpenStudy (across):

What is the length of the highlighted segment?

OpenStudy (anonymous):

5

OpenStudy (across):

Not quite.

OpenStudy (anonymous):

Is the highlighted segment the part from -1 to 3?

OpenStudy (across):

Yes.

OpenStudy (dls):

2

OpenStudy (across):

The length of the segment is \(3-(-1)=3+1=4\). Then you have the following equation:\[2x=4,\\ x=2.\]

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