Math Problem Statement

7k + 1 <= 8 or -7 < k - 10 solve inequality

Solution

To solve the compound inequality:

7k+18or7<k107k + 1 \leq 8 \quad \text{or} \quad -7 < k - 10

We will solve each part separately.

1. Solve 7k+187k + 1 \leq 8:

7k+187k + 1 \leq 8

Subtract 1 from both sides: 7k77k \leq 7

Divide both sides by 7: k1k \leq 1

2. Solve 7<k10-7 < k - 10:

7<k10-7 < k - 10

Add 10 to both sides: 3<k3 < k

This can also be written as: k>3k > 3

3. Combine the results:

The solution is k1k \leq 1 or k>3k > 3.

In interval notation, the solution is: (,1](3,)(-\infty, 1] \cup (3, \infty)

Would you like more details or have any questions?


Related Questions:

  1. How do you solve compound inequalities involving both "and" & "or"?
  2. What is interval notation and how do you use it?
  3. How do you graph the solution to a compound inequality on a number line?
  4. What is the difference between strict and non-strict inequalities?
  5. How do you solve inequalities involving absolute values?

Tip: When dealing with inequalities, always remember to reverse the inequality sign when multiplying or dividing by a negative number.

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Math Problem Analysis

Mathematical Concepts

Inequalities
Compound Inequalities
Interval Notation

Formulas

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Theorems

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Suitable Grade Level

Grades 7-9