Question

In ΔABC, m∠A = (3x + 8)°, m∠B = (2x + 7)°, and m∠C = (x – 9)°. What is the value of x?

Answer 1

x = 29

Explanation:

In problems like these all you have to do is simply add up all the xs and set them equal to 180

so

3x+8+2x+7+x-9=180

6x+6+180

6x=174

x=29