Question

I need help on How to cancel out E or F using multiplication?
5e+4f=9
4e+5f=9

Answer 1

multiply equation no 1 with 4 and equation no 2 by 5....then sub one from other ....u will get value of f....substitute it in any one equation you will get value of e...

Answer 2

or
multiply equation no 1 with 5 and equation no 2 by 4...then sub one from other ....u will get value of e...substitute it in any one equation you will get value of f
...

Answer 3

Multiply eq #1 * 4/5 or eq #2 * 5/4 then substitute

Answer 4

Please close this pt if you're done.
Thanks! cx