Question 418634
{{{4x+3x+2x=180 degrees}}}
{{{9x=180 degrees}}}
{{{9x/9=180 degrees/9}}}
x=20
Substituting x
{{{4(20)=80 degrees}}}
{{{3(20)=60 degrees}}}
{{{2(20)=40 degrees}}}]

Answer: 40 degrees