Answer:
387.625
Step-by-step explanation:
I'm not completely sure what that last number is supposed to be but if it is[tex]\frac{4}{5}x -\frac{1}{10} =310[/tex] , then the answer above is correct.
First, you create common denominators:
[tex]\frac{8}{10}x -\frac{1}{10} =310[/tex]
Then you can get rid of the denominator by multiplying both sides by 10:
[tex]8x -1 =3100[/tex]
Then add one to both sides to isolate x:
[tex]8x = 3101[/tex]
Lastly, divide by 8:
[tex]x = 387.625[/tex]
