Question

23.Solve:

+ 3 = - 7. Find x x​

Answer 1

Answer:

what this question is not complete

Answer 2

Answer:

In the given figure,AB∥CD,CD\parallel EFandy:z=3:7$$

Let y=3a and z=7a

∠DHI=y(vertically opposite angles)

∠DHI+∠FIH=180

∘

(Interior angles on the same side of the transversal)

⇒y+z=180

∘

⇒3a+7a=180

∘

⇒10a=180

∘

or a=18

∘

∴y=3×18

∘

=54

∘

and z=7×18

∘

=126

∘

Also,x+y=180

∘

⇒x+54

∘

=180

∘

∴x=180

∘

−54

∘

=126

∘

Hence,x=126

∘