SOLUTION: Thank you very much Fombitz. Now i have another quick question. Why can i multiply by 5/2 and not 2/5. Please I need a refresher. Thanks a lot you guys are great

SOLUTION: Thank you very much Fombitz. Now i have another quick question. Why can i multiply by 5/2 and not 2/5. Please I need a refresher. Thanks a lot you guys are great

Algebra.Com

Question 176354: Thank you very much Fombitz.
Now i have another quick question. Why can i multiply by 5/2 and not 2/5. Please I need a refresher.
Thanks a lot you guys are great
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
To go from

to

you need to use the multiplicative inverse of the coefficient in front of .
The multiplicative inverse of (2/5) is (5/2) since

So then you multiply both sides by (5/2), to get by itself on the left hand side.
.
.
.
If you multiply both sides by (2/5), you'd get,

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