SOLUTION: 3/4x - 2/5 = 2 solve for X Do I need to find a common Denominator for all including 2? or is there another way of doing this? thanks,

Algebra ->  Equations -> SOLUTION: 3/4x - 2/5 = 2 solve for X Do I need to find a common Denominator for all including 2? or is there another way of doing this? thanks,      Log On


   

Question 856914: 3/4x - 2/5 = 2 solve for X
Do I need to find a common Denominator for all including 2? or is there another way of doing this?
thanks,
Found 2 solutions by mananth, Fombitz:
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
%283%2F4%29x+-+2%2F5+=+2
LCM of denominator is 20
so multiply whole equation by 20
%283%2A20%2F4%29x+-+%282%2A20%2F5%29+=+2%2A20

15x-8=40
15x= 40+8
15x=48
x= 48/15
=16/5

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
You can multiply both sides by 4%2A5,
15x-8=40
15x=48
x=48%2F15=16%2F5