Math Problem Statement

Solve the following equation for x: 2x-3(x+4)=3x-4

Solution

Let's solve the equation 2x3(x+4)=3x42x - 3(x + 4) = 3x - 4.

Step-by-step Solution:

  1. Distribute the 3-3 on the left-hand side: 2x3(x+4)=2x3x122x - 3(x + 4) = 2x - 3x - 12 So, the equation becomes: 2x3x12=3x42x - 3x - 12 = 3x - 4

  2. Combine like terms on the left-hand side: (2x3x)12=3x4(2x - 3x) - 12 = 3x - 4 x12=3x4-x - 12 = 3x - 4

  3. Move the xx-terms to one side and constants to the other side. First, add xx to both sides: 12=4x4-12 = 4x - 4

  4. Add 4 to both sides to move the constant on the right-hand side: 12+4=4x-12 + 4 = 4x 8=4x-8 = 4x

  5. Solve for xx by dividing both sides by 4: x=84x = \frac{-8}{4} x=2x = -2

Final Answer:

x=2x = -2

Do you need any more details or explanations about this solution?


Here are 5 related questions:

  1. What happens if you change the constant term on the right-hand side of the equation?
  2. How do you check if x=2x = -2 is a solution to the original equation?
  3. How would the solution change if the equation had a different coefficient for xx?
  4. What is the general method to solve linear equations with variables on both sides?
  5. Can this type of equation have more than one solution?

Tip: Always double-check your solution by substituting it back into the original equation!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Distributive Property

Formulas

Distributive property: a(b + c) = ab + ac
Combining like terms

Theorems

Linear equation solving method
Properties of equality

Suitable Grade Level

Grades 7-9