Answer:
B. 6
Step-by-step explanation:
sum of all the angles of a triangles is 180⁰
therefore,
(8x+2)⁰+70⁰+60⁰=180⁰
(8x+2)⁰+130⁰=180⁰
8x+2=180-130
8x+2=50
8x=50-2
8x=48
x=48/8
x=6
___________
[tex] \: [/tex]
[tex]\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}[/tex]
8x + 2 + 70° + 60° = 180°
8x + 132 = 180
8x = 180 - 132
8x = 48
x = 48 ÷ 8
x = 6✔ (B.)
