How do you solve #-\frac { 3} { 5} u - \frac { 1} { 3} = \frac { 2} { 5} u - 3#?

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Answer 1 · 2017-05-14T01:15:54

#u=7/3#

Add #3/5u# to both sides:

#-3/5u-1/3+3/5u=2/5u-3+3/5u#

This becomes:

#-1/3=u-3#

Add #3# to both sides:

#-1/3+3=u-3+3#

This becomes:

#7/3=u#

We can turn this equation around to look more pleasing:

#u=7/3#