Question

8x +1312x + 7X == [?]Enter

Answer 1

The two angles given in the problem lie the opposite of each other with respect to the transversal line. This means that these two angles are supplementary angles. The sum of the two angles will be equal to 180 degrees, hence, we can set up an equation solving for x. We have

`8x+13+12x+7=180`

Solve for x, we have

`\begin{gathered} 20x+20=180 \\ 20x=180-20 \\ (20x)/(20)=(160)/(20) \\ x=8 \end{gathered}`

The value of x