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Solving the Linear Inequality
To solve the linear inequality , you must isolate the variable . Start by subtracting from both sides to gather the variable terms on the left side of the inequality, resulting in . Then, divide both sides by . Remember that when dividing or multiplying an inequality by a negative number, you must reverse the inequality symbol. Thus, the sign changes from to , giving the final solution of .
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Intermediate Algebra @ OpenStax
Ch.4 Systems of Linear Equations - Intermediate Algebra @ OpenStax
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Example: Solving and Graphing
Example: Solving and Graphing
Example: Solving and Graphing
Solving the Linear Inequality
A logistics coordinator is using the inequality to determine the maximum number of additional crates, , that can be added to a shipment without exceeding a weight limit. To isolate in the final step of the solution, the coordinator must divide both sides by -2. Which rule must be recalled when performing this operation?
A production manager is solving a multi-step linear inequality to determine the minimum number of units a factory must produce to stay within a specific budget. Arrange the following steps in the standard order typically used to solve a multi-step linear inequality for a variable, such as .
A procurement officer is solving the inequality to stay within a quarterly budget for office supplies, where represents the number of units ordered. After simplifying the inequality to , the officer must divide both sides by to solve for . True or False: In this final step, the inequality sign must be reversed to to maintain the correct solution.
Simplifying Multi-Step Inequalities
A business operations manager is solving a multi-step linear inequality to determine the maximum number of safety inspections that can be performed within a fixed quarterly budget. Match each algebraic property or rule to the correct description of its role in the solution process.
An inventory analyst is solving a multi-step linear inequality to ensure warehouse storage costs remain under a specified budget. In the final step of the calculation, they must divide both sides of the inequality by a negative number to isolate the variable. To maintain a true statement, the analyst must ________ the direction of the inequality sign.
Budget Calculation Review
Example: Solving and Graphing
Example: Solving and Graphing
Example: Solving the Inequality
Learn After
Learning Objectives for Graphing Systems of Linear Inequalities
A production manager is comparing two operational costs represented by the inequality . After simplifying the inequality to , what is the mandatory rule for handling the inequality symbol in the final step of dividing both sides by -3?
An inventory manager is solving the inequality to determine reorder levels. After subtracting from both sides, the manager gets . To finish solving for , the manager divides both sides by -3 and concludes that the final solution is .
A manufacturing manager is using the linear inequality to calculate a safety threshold for an automated assembly line, where represents the number of units processed per minute. Arrange the following steps in the correct order to solve for .
Standardizing the Solution for Cost Comparisons
In a corporate logistics scenario, a cost constraint is modeled by the linear inequality . Match each stage of the solution process with its correct mathematical description or result.
In a corporate inventory audit, a logistics manager models safety stock level variations using the linear inequality , where represents the number of buffer cases. After subtracting from both sides, the manager simplifies the relation to . To isolate the variable, the manager divides both sides by -3 and recalls the rule to reverse the inequality symbol (changing it from to ). Fill in the blank to complete the final solution: ____.
Utility Van Rental Cost Comparison