Question

solve for the value of r.
(8r - 6)°
(7r + 3)°
answer attempt 1 out of 2
r =

Explanation:

Step1: Identify vertical - angle property

Vertical angles are equal. So, $8r - 6=7r + 3$.

Step2: Isolate the variable r

Subtract $7r$ from both sides: $8r-7r-6=7r - 7r+3$.
$r-6 = 3$.

Step3: Solve for r

Add 6 to both sides: $r-6 + 6=3 + 6$.
$r=9$.

Answer:

$9$