The sum of two numbers is 84, and one of them is 12 more than the other. What are the two numbers?
Choices
A) 36-48
B) 50-34
C) 60-24
D) 42-42
E) 21-63
In this problem, we are asked to find two numbers. Therefore, we must let x be one of them. Let x, then, be the first number.   We are told that the other number is 12 more, x + 12.   The problem states that their sum is 84:   word problem = 84   The line over x + 12 is a grouping symbol called a vinculum. It saves us writing parentheses.   We have:   2x = 84 − 12   = 72.   x = 72/2= 
<gadget id="calculator">72/2</gadget>
<output>36</output>
36.   This is the first number. Therefore the other number is   x + 12= 36 + 12= 
<gadget id="calculator">36 + 12</gadget>
<output>48</output>
48.   The sum of 36 + 48 is 84.
<result>A</result>
The sum of two numbers is 84, and one of them is 12 more than the other. What are the two numbers?