I really need help with this question I’ve been struggling on this plzzz help

I Really Need Help With This Question Ive Been Struggling On This Plzzz Help class=

Answer :

Answer: A = 30, B = 91, C = 59

Step-by-step explanation:

(2x-1)+(3x+1)+x = 180

2x-1+3x+1+x=180

6x=180

x=30