Question 1147118
{{{system(A+B+C=53000,A=B+C,35A+30B+25C=1663000)}}}


{{{system(A+B+C=53000,A=B+C,35A+30B+25C=1663000)}}}


{{{system(A+B+C=53000,A=B+C,7A+6B+5C=332600)}}}


E1 & E2 :
-
{{{2A=53000}}}
{{{highlight_green(A=26500)}}}
-
{{{system(B+C=26500,7*26500+6B+5C=332600)}}}


{{{system(B+C=26500,6B+5C=147100)}}}


{{{system(5B+5C=132500,+6B+5C=147100)}}}


E2-E1:
{{{highlight_green(B=14600)}}}

and you can find C.