Question

if two angles of measures (2 X + 5)° and 100° degree from a linear pair then find the value of x​

Answer 1

Sum of angles forming a linear pair= 180°

Therefore

$(2x + 5) + 100 = 180$

$2x + 5 + 100 = 180$

$2x + 105 = 180$

$2x = 75$

$x = 37.5$

Therefore x is 37.5°