What is the value of w?

w = 39°

Step-by-step explanation:

108° and y° are suplementary angles

111° 69°and x° are suplemantary angles

then:

108 + y = 180

y = 180 - 108

y = 72°

111 + x = 180

x = 180 - 111

x = 69°

Internal angles of a triangle sum 180°

then:

x + y + w = 180

69 + 72 + w = 180

141 + w = 180

w = 180 - 141

w = 39°

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

-2/