Understanding and Solving the Equation: 3/4x + 10 = 7/8x

Mathematics often presents challenges, especially when solving for variables in linear equations. One common type of problem involves isolating the variable x in expressions with fractions. In this article, weโ€™ll explore how to solve the equation 3/4x + 10 = 7/8x step by step, explain the key algebraic concepts, and provide practical tips for correcting such equationsโ€”whether you're doing homework, preparing for exams, or simply expanding your math skills.


Understanding the Context

Solving the Equation: Step-by-Step Guide

Step 1: Understand the equation

We start with:
3/4x + 10 = 7/8x

Our goal is to isolate x on one side. This requires manipulating both sides using inverse operations while preserving equality.

Key Insights

Step 2: Eliminate the fractions by finding a common denominator

Both coefficients of xโ€”3/4 and 7/8โ€”are fractions. To simplify, express them with a common denominator (8):

  • 3/4 = 6/8
  • 7/8 already has denominator 8

Rewriting the equation:
(6/8)x + 10 = (7/8)x

Step 3: Subtract (6/8)x from both sides

Final Thoughts

This isolates the constant on the left and terms with x on the right:
10 = (7/8)x โ€“ (6/8)x
10 = (1/8)x

Step 4: Solve for x

Now solve:
x = 10 ร— 8
x = 80


Final Answer

The solution to 3/4x + 10 = 7/8x is
x = 80


Why This Equation Matters: Key Concepts

  • Linear Equations: This is a first-degree equationโ€”meaning x appears only to the first powerโ€”common in algebra and physics applications.
  • Fractions & Common Denominators: Converting fractions to a common denominator simplifies arithmetic and avoids errors.
  • Balancing Techniques: Any operation (addition, subtraction, multiplication) applied to one side must be applied to the other to maintain equality.

Verifying the Solution