Question

1. solve for x

(8.5x - 13)°
(7x - 4.3)°

Explanation:

Step1: Recognize supplementary angles

The two angles sum to 180°: $(8.5x - 13) + (7x - 4.3) = 180$

Step2: Combine like terms

$15.5x - 17.3 = 180$

Step3: Solve for x

$15.5x = 197.3$
$x = \frac{197.3}{15.5} = 12.729... \approx 12.73$

Answer:

$x \approx 12.73$