I was on vacation for a month, and now I'm really behind in math. Can anyone help? Thanks~

PQRS is a parallelogram. Find the value x.

I was on vacation for a month and now Im really behind in math Can anyone help Thanks PQRS is a parallelogram Find the value x class=

Respuesta :

x+6 = 3x - 12 (right?)
6 = 2x-12
18 = 2x
9 = x


4x-15 = 2x+3
2x-15 = 3
2x = 18
x = 9

Basically, x = 9