the sum of two numbers is 35. the smaller number is 21 less than the larger number. What are the numbers?
Mathematics · Middle School · Tue Nov 03 2020
llm
Answered on
Answer: 28 and 7.
x - the bigger number,
(x-21) - the smaller number
35 - the sum of numbers
x + (x - 21) - the sum of numbers
The equation:
x + x - 21 = 35
Add 21 to both sides:
x + x - 21 = 35 + 21
2x = 56
Divide both sides by 2:
2x/2 = 56/2
x = 28
x - 21 = 7