Question

Find the value of x.
5x +2
4x+8?

Answer 1

x = 17

Explanation:

Angle sum property of triangle

/ a + / b + / c = 180°

Similarly,

(5x + 2) + (4x + 8) + x = 180

5x + 2 + 4x + 8 + x = 180

(5x + 4x + x) + (2 + 8) = 180

10x + 10 = 180

10x = 180 - 10

10x = 170

x = 170 / 10

x = 17