Question

——PLEASE HELP ASAP———

The sum of the measures of Angle A and Angle B is 180°.
The measure of Angle A is (4x + 12)º
The measure of Angle B is (15x – 3)º .
What is the value of x?

Answer 1

x=9

Explanation:

Angle A = 48 degrees, Angle B = 132 degrees

(4x + 12) + (15x - 3) = 180

19x +9 = 180

19x = 171

x = 9

Angle A: 4x + 12 --> 4(9) + 12 --> 36 + 12 --> 48

Angle B: 15x - 3 --> 15(9) - 3 --> 135 - 3 --> 132

48 + 132 = 180

Answer 2

Angle A (42) Angle B (12.2)

Explanation: