Question

I just need an answer to 5b. This is homework

Answer 1

The sum of all internal angles is 180° ever , then sum the angles and equals to 180

$(96)+(2x)+(x+12)=180$

simplify

$\begin{gathered} 96+2x+x+12=180 \\ 3x+108=180 \end{gathered}$

and solve for x

$\begin{gathered} 3x=180-108 \\ 3x=72 \\ x=\frac{72}{3}=24 \end{gathered}$

Value of x is 24