Question

What is the value of x? Enter your answer in the box.

x =

Answer 1

Supplementary angles

• 10x-20+6x+8=180
• 16x-12=180
• 16x=180+12
• 16x=192
• x=192/16
• x=12

Answer 2

Answer: 12

Explanation:

A straight line has a measurement of 180° so these two angles added together will equal 180°.

(10x - 20)° + (6x + 8)° = 180°

10x° + 6x° + 8° - 20° = 180°

16x° -12° = 180°

16x° = 192°

x = 12