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Mathematics 10 Online
OpenStudy (anonymous):

3+4(z+5)=31

OpenStudy (anonymous):

3+4z +20=31

OpenStudy (anonymous):

23+4z=31

OpenStudy (anonymous):

4z=31-23

OpenStudy (anonymous):

4z=8

OpenStudy (anonymous):

z=8/4

OpenStudy (anonymous):

z=2

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