Question

Solve 1.8c = 7.5 for c.

Answer 1

$1.8c=7.5 \\\\ c=\frac{7.5}{1.8} \\\\ c=\frac{5\frac{5}{10}}{1\frac{8}{10}}=\frac{5\frac{1}{2}}{1\frac{4}{5}} \\\\ c=\frac{\frac{11}{2}}{\frac{9}{4}}= \frac{11}{2}*\frac{4}{9} \\\\ \boxed{c=\frac{22}{9}}$

Answer 2

C= 4.166666... or C= 7.5/1.8
You need to get C alone so you divide 1.8 from 7.5.