X*y=218.75
(x+0.5)*y=236.25
x=218.75/7
((218.75/y)+0.5)*y=236.25
218.75+0.5y=236.25
0.5y=17.5
y=35 => x=6.25
X*y=218.75
(x+0.5)*y=236.25
x=218.75/7
((218.75/y)+0.5)*y=236.25
218.75+0.5y=236.25
0.5y=17.5
y=35 => x=6.25