The answer would be a because of the time he is at the gym just add and subtract but the answer is a
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)
45+50=95 if you do math for a while you get used to it.
Yeah it’s called the minus sign
