142k views
1 vote
two times one number added to four times another gives 34. The sum of the two numbers is 13. Find the numbers

1 Answer

4 votes

Answer:

9 and 4

Explanation:

let the 2 numbers be x and y, then

2x + 4y = 34 → (1)

x + y = 13 → (2)

Rearrange (2) expressing y in terms of x by subtracting x from both sides

y = 13 - x → (3)

Substitute y = 13 - x into (1)

2x + 4(13 - x) = 34 ← distribute and simplify left side

2x + 52 - 4x = 34

- 2x + 52 = 34 ( subtract 52 from both sides )

- 2x = - 18 ( divide both sides by - 2

x = 9

Substitute x = 9 into (3)

y = 13 - 9 = 4

The 2 numbers are 9 and 4

User Rhorvath
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories