[tex]15.5x = 9.25x + 12.5 [/tex]
Subtract 9.25x on both sides
[tex]15.5x - 9.25x = 12.5[/tex]
Combine like terms
[tex]6.25x = 12.5[/tex]
divide both sides by 6.25 to have x alone
[tex] \frac{6.25x}{6.25} = \frac{12.5}{6.25 } \\ \: \: \: \: \: \: \: \: x = 2[/tex]
So B 2 hours
