Question

solve for u
-1/5 + 1/2 u = -2/3

Answer 1

-1/5 + 1/2 u = -2/3
-6/30 + 15/30 u = -20/30
+6/30                      +6/60
___________________
15/30 u = -14/30
(15/30 u = -14/30) ÷ (15/30)
u = -14/15
u = -.933