Question

problem 21: find x and y. after you enter your answer press go. x = y =

Explanation:

Step1: Use vertical - angle property

Vertical angles are equal. So $x=x - 67+67$, and also $x=(5y + 7)+y$. Another property is that $x+(x - 67)=180$ (linear - pair of angles).

Step2: Solve for x

Solve the equation $x+(x - 67)=180$.

$$
LATEXBLOCK0
$$

Step3: Solve for y

Substitute $x = 134$ into $x=(5y + 7)+y$.

$$
LATEXBLOCK1
$$

Answer:

$x = 134$, $y = 13$