Respuesta :

nancy1473

Answer:

x = 45'

Step-by-step explanation:

angle on a straight line is 180'

(2x +45)+x = 180'

open brackets

2x + 45 + x = 180'

collect like terms

3x +45= 180'

change equation

3x =180' - 45

3x = 135

divide both sides by 3

3x/3 = 135/3

x = 45'

sarkar15

Answer: x=45

Step-by-step explanation:

Otras preguntas