1. Math
2. Prealgebra
3. 3xy5z12 3z6 2x3yz3 solve by substitution step by step please...

# Question: 3xy5z12 3z6 2x3yz3 solve by substitution step by step please...

###### Question details

3x+y+5z=12, 3z=6, 2x-3y-z=3 solve by substitution step by step please I really need to understand this.