Math Problem Statement
Solve and graph: 3-x<-4 or 3-x>10
Solution
Let's solve the inequality and separately.
1. Solving :
-
Subtract 3 from both sides: Simplifying:
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Multiply both sides by -1 (remember to flip the inequality when multiplying by a negative number):
2. Solving :
-
Subtract 3 from both sides: Simplifying:
-
Multiply both sides by -1 (again, flip the inequality):
Solution:
From the two inequalities:
- or .
So, the solution is:
Graphing:
The solution can be represented on a number line:
- An open circle at -7 and 7, indicating that -7 and 7 are not included in the solution.
- A shaded line extending left from -7 and right from 7.
Let me know if you need any further clarification or the graph to be visualized!
Additional questions:
- How do inequalities behave when multiplied by negative numbers?
- What does the "or" condition mean in compound inequalities?
- What is the difference between open and closed circles on a number line?
- How would you solve the inequality if it involved absolute values?
- How can you graph inequalities involving "and"?
Tip: When solving compound inequalities, always remember that "or" means that the solution includes all values that satisfy either inequality.
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Math Problem Analysis
Mathematical Concepts
Algebra
Inequalities
Compound Inequalities
Formulas
Solving inequalities
Inequality properties when multiplied by negative numbers
Theorems
Flip inequality rule when multiplying/dividing by negative numbers
Suitable Grade Level
Grades 8-10