Writing a formula to return a blank if no data is in an adjacent cell

[chris.stgermain]

I've forgoten how to how to write a simple formula that will keep the cell blank if there isn't any data in an adjacent otherwise it should do the calculation.

This is how I wrote it.

=IF((E7=" "," "),(F6+E7))

Thank you 

[#2]

Hello Chris

=IF(E7="","",F6+E7)

[#3]

Thank you

It still returns the result of the formula. I'd the cell to remain blank until an entry is intered in E7.

[#4]

Oh thank you. I figured it out. I had a space between the quoatation marks.

It works! 

Thank you!

[#5]

Dear Chris,

You can also replace this part: E7="" , by this one: ISBLANK(E7)
This will help you to restrict the applying of the formula more then ever.

The applying with this replacement will stop only for the completely blank cells.