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OpenStudy (thecatman):
How many different variables are in the expression eight r minus one plus nine r minus two quantity q minus one end quantity plus eleven ? Name each variable.
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OpenStudy (thecatman):
@whpalmer4
OpenStudy (whpalmer4):
how many unique letters do you see there?
OpenStudy (thecatman):
2
OpenStudy (thecatman):
sorry 1
OpenStudy (whpalmer4):
uh, aren't q and r different letters?
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OpenStudy (whpalmer4):
\[8r-1+9r-2(q-1)+11\]
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