Question

In a triangle (5x-60) + (2x+40) + (3x-80) is what?

Answer 1

Answer:

x=28°

Step-by-step explanation:

first, arrange them

5x +2x+3x -60-80+40 =180°

10x-140 +40 =180°

10x-100°=180°

10x=180°+100°

10x=280°

x=280°/10

x=28°

check

taking 'x' as 28°

140-60+56+40+84-80 = 180°

180° = 180°