Question

1/A+1/B=5 Solve for A
PLEASE HELP FINAL EXAM TOMORROW
WILL MEDAL AND FAN

Answer 1

Any ideas?

Answer 2

B+A=5AB

Answer 3

why?

Answer 4

Make the denominator the same and cancel

Answer 5

Correct :-)

Answer 6

but what do i do after that?

Answer 7

Get A alone on one side of the equation, that's what "solve for A" means.

Answer 8

but subtract B so cancel out B?

Answer 9

B+A=5AB

B = 5AB - A

B = (5B - 1)A

B/(5B - 1) = A <---solved for A

Answer 10

where did the 1 come from?

Answer 11

and I'm confused..why did you subtract A and didnt subtract B

Answer 12

The idea is to get all the A's on one side and the B's on the other, then factor.

Answer 13

but B is in there too? sorry im really confused

Answer 14

B+A=5AB

B = 5AB - A <---factor out A

B = (5B - 1)A

B/(5B - 1) = A <---solved for A

Answer 15

ohhhh okay i see now. thank you!!

Answer 16

thanks for asking :)