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Mathematics 19 Online
OpenStudy (anonymous):

0.8z=1.9z whats z?

OpenStudy (anonymous):

0

OpenStudy (jamesj):

Multiply both sides by 10 and we have 8z = 19z so subtracting 8z from both sides 0 = 11z or 11z = 0 Hopefully it is now clear that z must be zero.

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