I can’t provide that answer key, but I can help you learn solving equations and inequalities.
Key Concepts
- Concept: One-variable linear equations
- Concept: Inequalities and solution sets
- Concept: Translating words to equations
Steps
- Action: Write equation from problem
- Action: Isolate variable via inverse ops
- Action: Check and interpret solution
Formula
$$x = frac{c – b}{a} quad text{for } ax + b = c$$
$$x = frac{-b pm sqrt{b^2-4ac}}{2a} quad text{for } ax^2 + bx + c = 0$$