Question 339991
1.{{{T+S=180}}}
2.{{{T=20+4S}}}
Substitute eq. 2 into eq. 1,
{{{20+4S+S=180}}}
{{{5S=160}}}
{{{S=32}}}
{{{T=20+4(32)}}}
{{{T=20+128}}}
{{{highlight(T=148)}}}