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Mathematics
OpenStudy (anonymous):

8z=4(2z+1)

OpenStudy (anonymous):

8z=8z+4 0=4 there r no solutions

jimthompson5910 (jim_thompson5910):

8z=4(2z+1) ... Start with the given equation. 8z=8z+4 ... Distribute. 8z-8z=4 ... Subtract 8z from both sides. 0z=4 ... Combine like terms on the left side. 0=4 ... Simplify. Since this equation is never true for any z value, this means that there are no solutions.

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