Kris joined a gym. she paid $2 each time she went to the gym. she also paid a fee for a locker key each time she went to the gym. kris went to the gym 21 times last month and paid a total of $52.50. the equation 21(x + 2) = 52.50 can be used to find x, the cost for a locker key. what is the first step in solving the equation to find x, the cost for a locker key? a. add 2 to both sides. b. divide both sides by 21. c. multiply both sides by 21. d. subtract 2 from both sides.

B. Divide both sides by 21.

Step-by-step explanation:

We have been given that Kris joined a gym. She paid $2 each time she went to the gym.

Kris also paid a fee for a locker key each time she went to the gym. Kris went to the gym 21 times last month and paid a total of $52.50.

The equation can be used to find x, the cost for a locker key.

Let us solve our given equation. To solve our given equation we will divide both sides of equation by 21.

Therefore, the 1st step in solving our given equation to find x, will be divide both sides of equation by 21 and option B is the correct choice.

the answer is n