Answer:
12
Step-by-step explanation:
substitute
4(4-1)
4(3)
12
Answer:
Step-by-step explanation:
hello:
here an solution
Answer: It would be 8+4z because you can't add a variable.
He can conclude that the system of equations has no solution since one equation in it always results with false equivalency.
Hope this helps.
r3t40