Question

Four less than two times a number is seven times the sum of that number and 8. Which equation

could be used to solve this problem?

1. 4- 2n + 7n = 8
2. 2n - 4 = 7n + 8
3. 2n - 4 = 7(n + 8)
4. 4 - 2n = 7(n + 8)​

Answer 1

9514 1404 393

Answer:

3. 2n - 4 = 7(n + 8)

Explanation:

Two times a number is 2n. Four less than 2n is (2n-4). The sum of a number and 8 is (n+8). Seven times that sum is 7(n+8). The statement says these values are equal:

2n -4 = 7(n +8)