Question

Someone help me plzzzzzz

Answer 1

Explanation:

5x-4+7x-8=180

12x-12=180

12x=192

x = 16

5(16)-4= 80-4= 76 degrees

7(16)-8= 112-8= 104 degrees

9y + 5 = 104

9y = 99

y = 11

9(11) + 5 = 99 + 5 = 104