Answer:
10 lbs
Step-by-step explanation:
The two systems have the same solution.
The correct answer is 3) since the first equation of system B is indeed the addition of the first equation of system A and 4 times the second equation of system A.
Answer: 3)
Answer:
3
Step-by-step explanation:
-(4)+7=3
plug in 4 for d and since it is -d it would be -4
7-4=3