Find the value of x that will make l||m.

Since they are vertical angles you have to set them equal to each other so

7x-7= 4x+14

Then you gotta solve it from there.

Subtract 4x to both sides

3x-7=14

Add 7 to both sides

3x=21

divide 3 to both sides

x=3

Hope that this helped you out hon :) BTW YOU ARE SO PRETTY OM FG

(x+6)(x+7)

Step-by-step explanation:

You have 1x² so you can easily factor and if you expand you get x² +13x +42