Math Problem Statement

Solve for x. Justify each step. Given: -2(2x+3) +1 = -x-13+3x

Solution

We are tasked with solving for xx in the equation:

2(2x+3)+1=x13+3x-2(2x + 3) + 1 = -x - 13 + 3x

Step 1: Distribute the 2-2 on the left-hand side.

Distribute the 2-2 across the terms inside the parentheses:

2(2x)2(3)+1=x13+3x-2(2x) - 2(3) + 1 = -x - 13 + 3x

This simplifies to:

4x6+1=x13+3x-4x - 6 + 1 = -x - 13 + 3x

Step 2: Combine like terms on both sides.

On the left-hand side, combine 6+1-6 + 1:

4x5=x13+3x-4x - 5 = -x - 13 + 3x

On the right-hand side, combine the xx-terms x+3x-x + 3x:

4x5=2x13-4x - 5 = 2x - 13

Step 3: Move all terms involving xx to one side.

Add 4x4x to both sides to eliminate the 4x-4x on the left-hand side:

4x+4x5=2x+4x13-4x + 4x - 5 = 2x + 4x - 13

This simplifies to:

5=6x13-5 = 6x - 13

Step 4: Isolate the xx-term.

Add 13 to both sides to move the constant term to the left-hand side:

5+13=6x-5 + 13 = 6x

This simplifies to:

8=6x8 = 6x

Step 5: Solve for xx.

Divide both sides by 6 to isolate xx:

x=86=43x = \frac{8}{6} = \frac{4}{3}

Thus, the solution is:

x=43x = \frac{4}{3}

Final Answer:

x=43x = \frac{4}{3}

Would you like more details or further clarifications?

Here are some related questions:

  1. How would the process change if the equation had fractional coefficients?
  2. How do we handle distributive property with more complicated expressions?
  3. What happens if there are absolute values in the equation?
  4. How can we check if the solution is correct?
  5. What are the steps to solve a quadratic equation?

Tip: Always double-check your work by substituting the solution back into the original equation.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Distributive Property
Combining Like Terms

Formulas

Distributive Property: a(b + c) = ab + ac
Linear Equation: ax + b = 0

Theorems

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Suitable Grade Level

Grades 7-9