Question

The measure of two supplemaintary angles
are (2x+5). Find the value of x.​

Answer 1

Answer:

∴ (3x + 15)° + (2x + 5)° = 180° ‘ 3x + 15 + 2x + 5 = 180° ⇒ 3x + 2x + 15 + 5 = 180° ⇒ 5x°+ 20° = 180° ⇒ 5x = 180° – 20° ⇒ 5x = 160° ⇒ x = (160/5)° ⇒ x = 32°Read more on Sarthaks.com - https://www.sarthaks.com/172055/the-measures-of-two-supplementary-angles-are-3x-15-and-2x-5-find-x?show=172058#a172058

Answer 2

Answer:

if two angles are supplementary then their sum will be 180

2x+5=180

2x=175

x=87.5

so one of the angles is 87.5 and other will be 180-87.5=92.5