Answer:

Step-by-step explanation:
First, subtract 3x. This leaves you with jy=7-3x. Then, divide by j, leaving you with
.
1. Commutative property of adfition
2. Multiplicative inverse
3. Associative property of addition
4. Distributive property
5. Additive identity
2 maybe it really depends on how big the cats are and what kind they are
5x + 10x = 180
15x = 180
X = 12
5 x 12 = 60
10 x 12 = 120
The angles are 60° and 120°