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OpenStudy (anonymous):
13. Subtract and simplify. (z-3/z)-(2z-3/7z)
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OpenStudy (anonymous):
(5z-18)/7z
OpenStudy (anonymous):
common denominators (7z-21)-(2z-3) -------------- 7z =5z-18 ----- 7z
OpenStudy (anonymous):
is this simplified?
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