Math Problem Statement

Solve the equation (y - 5) / 3 = 4 / 5.

Solution

The equation provided in the image is:

y53=45\frac{y - 5}{3} = \frac{4}{5}

Step-by-step solution:

  1. Eliminate the fractions by cross-multiplying: Multiply both sides by the denominators of the fractions, 33 and 55: 5(y5)=3(4)5(y - 5) = 3(4)

  2. Simplify both sides: 5y25=125y - 25 = 12

  3. Isolate 5y5y: Add 2525 to both sides: 5y=375y = 37

  4. Solve for yy: Divide both sides by 55: y=375y = \frac{37}{5}

Final Answer:

y=375 or 7.4y = \frac{37}{5} \text{ or } 7.4

Let me know if you have further questions or need clarification!


Related Questions:

  1. How can you check your solution in a fraction-based equation?
  2. What are common mistakes to avoid when cross-multiplying?
  3. How do you convert improper fractions into decimals?
  4. What strategies can you use to solve equations with variables on both sides?
  5. How can this method be extended to equations with multiple variables?

Tip:

When solving equations with fractions, always simplify the fractions and check your solution by substituting it back into the original equation.

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Math Problem Analysis

Mathematical Concepts

Algebra
Equations with Fractions

Formulas

Cross-multiplication for solving equations with fractions

Theorems

Basic properties of equality

Suitable Grade Level

Grades 7-8