Ifp =-5/9, q=4/7, r=-8/7
then verify
px (q-r) = p xq-pxr
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Answer:
20/36=-20/21
Step-by-step explanation:
-5/9×(4/7-8/7)=-5/9×4/7+5/9×8/7
-5/9×-4/7=-20/63+40/63
20/36=-20/63+40/63
20/36=-20/21
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