Question

What is the value of x?

Answer 1

`\large\huge\green{\sf{Answer:-}}`

• option d is correct

`\large\huge\green{\sf{Explanation:-}}`

• The sum of all three angle of triangle is180°

`(8x + 5) + (5x - 1) + (4x + 6) = 180 {}^(o) \\8x + 5 + 5x - 1 + 4x + 6 = 180 {}^(o) \\ 8x + 5x + 4x + 5 - 1 + 6 = 180 {}^(o) \\ 17x + 10 = 180 {}^{ {}^(o) } \\ 17x = 180 - 10 \\ 17x = 170 \\ x = (170)/(10) = 17 \\ x = 17`