Question

Help please !If I don’t pass this quiz I’ll fail the whole class

Answer 1

Given

Solution

$\begin{gathered} 3x=x+80 \\ 3x-x=80 \\ 2x=80 \\ Divide\text{ both sides by 2} \\ \frac{2x}{2}=\frac{80}{2} \\ x=40^0 \end{gathered}$

The final answer

$x=40^0$

C