Question 546758
{{{((T+97)/(n+1))=90}}}
solve above for T
{{{(T+97)=90(n+1)}}}
{{{T=90n+90-97}}}
{{{T=90n-7}}}
use substitution below
{{{((T+73)/(n+1))=87}}}
{{{(((90n-7)+73)/(n+1))=87}}}
{{{(90n-7+73)=87n+87}}}
{{{90n+66=87n+87}}}
{{{3n+66=87}}}
{{{3n=21}}}
{{{n=7}}}
use substitution below
{{{T=90n-7}}}
{{{T=90(7)-7}}}
{{{T=623}}}
check
{{{(623+97)/(8)=90}}}
{{{90=90}}}
correct
check
{{{(623+73)/(8)=87}}}
{{{87=87}}}
correct
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