Math Problem Statement

solve for u: -4(u+2)+2=2(u+6)

Solution

Let's solve the equation step by step:

Given:
4(u+2)+2=2(u+6)-4(u + 2) + 2 = 2(u + 6)

Step 1: Distribute the constants

Distribute the 4-4 on the left side and the 22 on the right side:

4u8+2=2u+12-4u - 8 + 2 = 2u + 12

Step 2: Simplify both sides

On the left side, simplify 8+2-8 + 2:

4u6=2u+12-4u - 6 = 2u + 12

Step 3: Move the terms involving uu to one side

Add 4u4u to both sides to eliminate 4u-4u from the left:

6=6u+12-6 = 6u + 12

Step 4: Move the constants to the other side

Subtract 1212 from both sides to move the constant terms to one side:

612=6u-6 - 12 = 6u

18=6u-18 = 6u

Step 5: Solve for uu

Divide both sides by 6:

u=186u = \frac{-18}{6}

u=3u = -3

Final Answer:

u=3u = -3

Would you like more details or have any questions?

Here are 5 related questions:

  1. What happens if we use the distributive property incorrectly?
  2. How can we check the solution for correctness?
  3. How do we solve an equation with fractions?
  4. What are the different methods for solving linear equations?
  5. How does moving terms from one side to another affect the equation?

Tip: Always simplify the equation step-by-step to avoid mistakes in sign handling!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Distributive Property

Formulas

Distributive property: a(b + c) = ab + ac
Solving linear equations: ax + b = 0

Theorems

Distributive property of multiplication over addition

Suitable Grade Level

Grades 7-9