A  Substrates  Formula 
f>a 
 
a>b 
 
b>c<=>d 
 
c<=>d 
 
d>e 
 
e>f 
 
NSolve[&&&&&&&& && && a>0 && b>0 && c>0 && d>0 && e>0 && f>0 &&, {a,b,c,d,e,f}]
 
B  The rate of synthesis of (c) from (b) by E2 ($1) equals that of its transformation between (c) and (d) (synthesis and/or degradation by E3N) ($2)); from the equality $1=$2, the equation for (d) is deduced, as shown in panel (A).
 
C  The rate of transformation between (c) and (d) (synthesis and/or degradation by E3N) ($2) equals that ofits degradation of (d), by E4 ($3); from the equality $2=$3, the equation for (c) is deduced, as shown in panel (A). ;
