Answer:
[tex]u=16.0024213[/tex]
Step-by-step explanation:
[tex]-4.13(u-19)=12.38\\-(4.13u-4.13*19)=12.38\\-(4.13u-78.47)=12.38\\(-4.13u+78.47)+(-78.47)=12.38+(-78.47)\\-4.13u+78.47-78.47=12.38-78.47\\-4.13u=-66.09\\\frac{4.13u}{4.13} =\frac{66.09}{4.13} \\u=\frac{66.09}{4.13} \\u=16.0024213[/tex]
