Question

PLEASE HELP ME QUICK Write a mathematical sentence for the inequality:

Twice the difference of a number and seven is less than or equal to forty.

Complete your work in the space provided. In the form of a paragraph, explain the process necessary to solve the inequality for the unknown values. In your answer, include the inequality sentence, solution and explanation.

Answer 1

2 * n - 7 <= 40

`2 * n - 7 \leq 40\\n-7\leq 20\\n\leq 27`

To solve this equation, you need to isolate the variable. The equation is "2 * n - 7 <= 40". First, divide both sides by 40 using the division property of equality. This gets "n - 7 <= 20". Then, to further isolate the variable add 7 to both sides using the addition property of equality. This gets the solution which is, "n <= 27"

*Hope this helped! : ) have a good day/ night wherever you are!*