Math Problem Statement

\frac{2x+1}{5}-\frac{3-x}{6}=\frac{4-2x}{3}

Solution

We are given the equation:

2x+153x6=42x3\frac{2x+1}{5} - \frac{3 - x}{6} = \frac{4 - 2x}{3}

Step 1: Find the least common denominator (LCD)

The denominators are 55, 66, and 33. The least common denominator (LCD) of these is 30.

Step 2: Multiply the entire equation by the LCD (30)

Multiply each term by 30 to eliminate the denominators:

30(2x+15)30(3x6)=30(42x3)30 \cdot \left(\frac{2x+1}{5}\right) - 30 \cdot \left(\frac{3 - x}{6}\right) = 30 \cdot \left(\frac{4 - 2x}{3}\right)

This simplifies to:

6(2x+1)5(3x)=10(42x)6(2x + 1) - 5(3 - x) = 10(4 - 2x)

Step 3: Distribute

Now distribute the constants to each term:

6(2x+1)=12x+66(2x + 1) = 12x + 6 5(3x)=15+5x-5(3 - x) = -15 + 5x 10(42x)=4020x10(4 - 2x) = 40 - 20x

So the equation becomes:

12x+615+5x=4020x12x + 6 - 15 + 5x = 40 - 20x

Step 4: Simplify

Combine like terms:

(12x+5x)+(615)=4020x(12x + 5x) + (6 - 15) = 40 - 20x 17x9=4020x17x - 9 = 40 - 20x

Step 5: Move variables to one side

Add 20x20x to both sides:

17x+20x9=4017x + 20x - 9 = 40 37x9=4037x - 9 = 40

Step 6: Isolate xx

Add 9 to both sides:

37x=4937x = 49

Now divide by 37:

x=4937x = \frac{49}{37}

Thus, the solution is:

x=4937x = \frac{49}{37}

Would you like a detailed explanation or have any further questions?

Related Questions:

  1. How do you solve equations with fractions more efficiently?
  2. What is the process for solving linear equations with multiple fractions?
  3. How do you determine the least common denominator?
  4. What are other methods to isolate variables in an equation?
  5. Can the solution method change for systems of linear equations with fractions?

Tip:

When dealing with equations that have multiple fractions, clearing the fractions by multiplying by the least common denominator can simplify the process considerably.

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Math Problem Analysis

Mathematical Concepts

Algebra
Equations with Fractions
Linear Equations

Formulas

Clear fractions by multiplying by the least common denominator (LCD)

Theorems

Distributive Property
Addition/Subtraction of Like Terms

Suitable Grade Level

Grades 8-10