Respuesta :

X=29. All three sides should add up to 180
tasni109

Answer:

29

Step-by-step explanation:

[remember: angle sum property of a triangle is always 180]

2x-7+ 3x + 42 = 180(angle sum property of a triangle)

2x + 3x -7 + 42 = 180

5x + 35 = 180

5x = 180-35

5x = 145

x = 145/5

x = 29

hope it helps you!