In the figure if l||m and ∠1=(2x+y)∘ , ∠4=(x+2y)∘ and ∠6=(3y+20)∘. Find ∠7 and ∠8.

In the figure if l||m and ∠1=(2x+y)∘ , ∠4=(x+2y)∘ and ∠6=(3y

1.	In the figure if l\|\|m and ∠1=(2x+y)∘ , ∠4=(x+2y)∘ and ∠6=(3y+20)∘. Find ∠7 and ∠8.
Answer» In the figure if $l \| \| m$ and $∠ 1 = (2 x + y)^{\circ}$ , $∠ 4 = (x + 2 y)^{\circ}$ and $∠ 6 = (3 y + 20)^{\circ}$ . Find $∠ 7$ and $∠ 8$ .