Answer
$20c+43 +\frac{36}{c-1}$
Work Step by Step
$(20c^2+23c-7) \div (c-1)$
$20c$
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$c-1) 20c^2 +23c -7$
$20c^2-20c$
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$43c - 7$
$43c + 43$
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$36$
The answer is $20c+43 +\frac{36}{c-1}$