SOLUTION: i need to use substitution method or elmination here. i am just not sure if i find the LCD and change all the fractions... 3x/8-3y/5=33/80 4x/7+4y/5=37/35

Question 666096: i need to use substitution method or elmination here. i am just not sure if i find the LCD and change all the fractions...
3x/8-3y/5=33/80
4x/7+4y/5=37/35
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
i need to use substitution method or elmination here. i am just not sure if i find the LCD and change all the fractions...
3x/8-3y/5=33/80
4x/7+4y/5=37/35
-------------------
I would eliminate fractions.
Multiply eqn 1 by 80 and the 2nd by 35.

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