532,284 views
30 votes
30 votes
Consider the equation below. − 5 ⁢ n + 31 = − 14 ⁢ n − 5 Select the equation that has the same solution. − 1 − 22 ⁢ n = − 20 ⁢ n − 9 1 = 0.75 ⁢ n + 3.25 3 − 6 ⁢ n + 3 ⁢ n = − 3 + 4 − 4 ⁢ n

User Bonlenfum
by
3.1k points

2 Answers

6 votes
6 votes

Answer: The equation that has the same solution as the given equation is −1 − 22 ⁢ n = −20 ⁢ n − 9. This can be seen by solving both equations for n.

To solve the given equation − 5 ⁢ n + 31 = − 14 ⁢ n − 5 for n, we can start by adding 5n to both sides to obtain 31 = − 9 ⁢ n − 5. Then, we can add 9n and 5 to both sides to obtain n = −1.

To solve the equation −1 − 22 ⁢ n = −20 ⁢ n − 9 for n, we can start by adding 22n to both sides to obtain −1 = −20 ⁢ n − 9. Then, we can add 20n and 9 to both sides to obtain n = −1.

Since both equations have the same solution for n (namely, n = −1), they have the same solution. Note that the other equations listed in the question do not have the same solution as the given equation. For example, the equation 1 = 0.75 ⁢ n + 3.25 has the solution n = −4, while the equation 3 − 6 ⁢ n + 3 ⁢ n = − 3 + 4 − 4 ⁢ n has the solution n = 1/5. These solutions are different from the solution n = −1 of the given equation, so these equations do not have the same solution as the given equation.

User Ehennum
by
3.0k points
22 votes
22 votes

Answer:

11/4n+2=-3+ 3/2n

Explanation:

User Gibsnag
by
2.5k points