Question

Solve for x …………………..,.

Answer 1

Answer:

x = 4 , x = 3

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

(11)

18x + 5 = 46 - 1 + 8x

18x + 5 = 45 + 8x ( subtract 8x from both sides )

10x + 5 = 45 ( subtract 5 from both sides )

10x = 40 ( divide both sides by 10 )

x = 4

(13)

15x + 5 + 22x + 4 = 120

37x + 9 = 120 ( subtract 9 from both sides )

37x = 111 ( divide both sides by 37 )

x = 3