[tex]\frac{16}{9}(1.2b)=4.8( \frac{20}{3})[/tex]
Multiply 4.8 into (20/3), and multiply 16/9 with (1.2b)
[tex]\frac{19.2b}{9} = \frac{96}{3}[/tex]
[tex]\frac{19.2b}{9} = 32[/tex] Multiply 9 on both sides
19.2b = 32(9)
19.2b = 288 Divide 19.2 on both sides
b = 15