Question 1208057
r, g, y stand for red, green, yellow
c, how many cars total


{{{r=(2/5)c}}} {{{and}}} {{{g-r=35}}} {{{and}}} {{{y=15}}}
but this can be cut down to just one variable.


{{{r+g+y=c}}}

{{{(2/5)c+(r+35)+15=c}}}

{{{(2/5)c+(2/5)c+35+15=c}}}

{{{4c/5+50=c}}}

{{{4c+250=5c}}}

{{{c=250}}}
250 cars