In B6, enter this:
=A6-C6

--
HTH,

RD

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"How i have #10 in cell when previous#5 a" <How i have #10 in cell when
previous#5 wrote in message
...
if i want to create relation between two cells to give number in third
cell
for instance i want B6=10 if A6=5 & C6=15 simulatenously