SumIf across columns

I'm fairly new with Excel and I cannot figure out how to accomplish my task.

I have two sets of numbers (see below)


A................B................ C............. D............. E..............F..............G

Unit............15 days.........30 days......Unit........15days....... 30days
iron............ 7..................3............... pan.........6................. 2
waffle...........2.................. 6...............cup..........2................ 9
onion...........1...................8...............iron..........6.................17

I need to find a formula will look for the unit specified in column A and combine corresponding values in B & F. (So if when it finds iron in E4 it will add B2 and F3)

Hopefully I explained this well enough, if you need more information please let me know.

Thanks in advance!