Question 147801
1.{{{S-C=P}}}
2.{{{P/S=M}}}
You weren't specific in terms of which variables.
2.{{{P/S=M}}}
{{{P=SM}}} in terms of S and M.
If you need in terms of C and M, then start with eq. 2,
2.{{{P/S=M}}}
{{{P=SM}}}
{{{S=P/M}}}
Now substitute into eq. 1,
1.{{{S-C=P}}}
{{{(P/M)-C=P}}}
{{{(P/M)-P=C}}}
{{{P((1/M)-1)=C}}}
{{{P=C/((1/M)-1)}}}
{{{P=(CM)/(1-M)}}}