9/12 + 1/2
$\frac{2}{y+1}$- $\frac{3}{y}$
3/2 + 1/4
3x-9y≤18
f(1)=3/2(1)+6
2/3 + 1/7
1288 divided by 23 with solution
(5-t)/(r-2)
f(x)=3/2x+6