Math Problem Statement

Express each equation as another equivalent equation. Justify your answer. Solve each equation. Check your solution.

Solution

Let’s go step by step for these exercises. I’ll solve a few problems for demonstration and explain the process so you can work on the rest.


Part C: Express each equation as another equivalent equation

  1. x6=3x+10x - 6 = -3x + 10

    Solution:

    • Add 3x3x to both sides: x+3x6=10x + 3x - 6 = 10
    • Combine like terms: 4x6=104x - 6 = 10
    • Add 66 to both sides: 4x=164x = 16
    • Equivalent equation: 4x=164x = 16.
  2. 2x+7=x62x + 7 = x - 6

    Solution:

    • Subtract xx from both sides: 2xx+7=62x - x + 7 = -6
    • Combine like terms: x+7=6x + 7 = -6
    • Subtract 77 from both sides: x=13x = -13
    • Equivalent equation: x=13x = -13.

Part D: Solve each equation

  1. 11x7=5x11x - 7 = 5 - x

    Solution:

    • Add xx to both sides: 11x+x7=511x + x - 7 = 5
    • Combine like terms: 12x7=512x - 7 = 5
    • Add 77 to both sides: 12x=1212x = 12
    • Divide by 1212: x=1x = 1

  1. 28x=10x+202 - 8x = 10x + 20

    Solution:

    • Subtract 10x10x from both sides: 28x10x=202 - 8x - 10x = 20
    • Combine like terms: 218x=202 - 18x = 20
    • Subtract 22 from both sides: 18x=18-18x = 18
    • Divide by 18-18: x=1x = -1

  1. 173x=2+2x17 - 3x = 2 + 2x

    Solution:

    • Subtract 2x2x from both sides: 173x2x=217 - 3x - 2x = 2
    • Combine like terms: 175x=217 - 5x = 2
    • Subtract 1717 from both sides: 5x=15-5x = -15
    • Divide by 5-5: x=3x = 3

Do you want me to solve the remaining problems or go into more detailed explanations? Let me know!


Relative Questions:

  1. What is the strategy for isolating variables in linear equations?
  2. How do you justify the equivalence of equations after transformations?
  3. Why is it important to check solutions for equations?
  4. How do fractional coefficients in equations affect the solving process?
  5. What are common mistakes to avoid when solving linear equations?

Tip: Always simplify each step to avoid errors when solving equations.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Equation Simplification
Variable Isolation

Formulas

Linear equation: ax + b = cx + d

Theorems

Properties of Equality (Addition, Subtraction, Multiplication, and Division)

Suitable Grade Level

Grades 6-8