Which of the following is the correct way to solve r + 18.4 = 23? Choose the correct answer.

a
Subtract 18.4 from both sides of the equal sign
b
Add 18.4 to both sides of the equal sign
c
Add 23 to both sides of the equal sign
d
Subtract 23 from both sides of the equal sign

the answer is a, please mark me brainliest!

i was just doing a test on this

Step-by-step explanation:

subtract 18.4 from both sides

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or