Then: -18.5 = x(-22) + (1 - x)(-14)
Solving the Equation: -18.5 = x(-22) + (1 - x)(-14)
Understanding how to solve linear equations is essential in algebra, and tackling expressions like −18.5 = x(−22) + (1 − x)(−14) reveals key techniques that simplify complex formulas into clear, solvable forms. Whether you're a student mastering algebra or a teacher explaining key concepts, this step-by-step guide will help you solve the equation efficiently and boost your problem-solving skills.
Step-by-Step Solution to −18.5 = x(−22) + (1 − x)(−14)
Start with the original equation: −18.5 = x(−22) + (1 − x)(−14)
Step 1: Expand the terms
Multiply out each part: −18.5 = −22x + (−14) + (1)(−14) − x(−14) = −22x − 14 − 14 + 14x (Note: −14×(−x) = +14x)
Combine like terms on the right: −22x + 14x = −8x −14 − 14 = −28 So: −18.5 = −8x − 28
Step 2: Isolate the term with x
Add 28 to both sides: −18.5 + 28 = −8x − 28 + 28 9.5 = −8x
Step 3: Solve for x
Divide both sides by −8: x = 9.5 / (−8) x = −1.1875
Final Answer
x = −1.1875
Why This Equation Matters
Solving equations like −18.5 = x(−22) + (1 − x)(−14) goes beyond algebra homework—it’s foundational for modeling real-world scenarios such as budgeting, proportional reasoning, and physics equations. Mastering this process strengthens logical thinking and prepares you for advanced math topics like systems of equations, quadratic functions, and calculus.
Tips for Solving Similar Equations
- Always expand parentheses clearly.
- Combine like terms before solving for the variable.
- Isolate the variable term step-by-step.
- Check your solution by substituting back into the original equation.
Mastering linear equations transforms abstract symbols into practical problem-solving tools. Start with practice, use systematic steps, and grow confident with algebra!
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Optimize your understanding and confidence in algebra by revisiting core techniques such as distributing, combining terms, and isolating variables. Solving equations is not just about numbers—it’s about clarity and logic.
