Answer:
See Below!
Step-by-step explanation:
Depending on what the shape may be, for example a triangle, it should have 3 values that when all added up will equal 180.
Please tell me if you require any more assistance, as I am here to help!
7y
use distributive property:
4x+12y=6x-2y
2x=14y
x=7y
129 + 20p