Math Problem Statement

Solve the linear equations in one variable below and check your solution.

Solution

The image contains five linear equations to solve. Here are the equations extracted from the image:

  1. 8(2x)=4(2x+4)8(2x) = 4(2x + 4)
  2. 7x+5x=9x97x + 5x = 9x - 9
  3. 10(x+2)3(x2)2(x2)=010(x + 2) - 3(x - 2) - 2(x - 2) = 0
  4. 12x10=4812x - 10 = 48
  5. 4(x+2)=26x4(x + 2) = 2 - 6x

I will solve each equation step-by-step.

1. Solve: 8(2x)=4(2x+4)8(2x) = 4(2x + 4)

First, expand both sides: 82x=4(2x+4)8 \cdot 2x = 4 \cdot (2x + 4) 16x=8x+1616x = 8x + 16

Rearrange to isolate xx: 16x8x=1616x - 8x = 16 8x=168x = 16 x=2x = 2

2. Solve: 7x+5x=9x97x + 5x = 9x - 9

Combine like terms on the left side: 12x=9x912x = 9x - 9

Rearrange to isolate xx: 12x9x=912x - 9x = -9 3x=93x = -9 x=3x = -3

3. Solve: 10(x+2)3(x2)2(x2)=010(x + 2) - 3(x - 2) - 2(x - 2) = 0

Expand each term: 10x+203x+62x+4=010x + 20 - 3x + 6 - 2x + 4 = 0 Combine like terms: (10x3x2x)+(20+6+4)=0(10x - 3x - 2x) + (20 + 6 + 4) = 0 5x+30=05x + 30 = 0

Rearrange to isolate xx: 5x=305x = -30 x=6x = -6

4. Solve: 12x10=4812x - 10 = 48

Rearrange to isolate xx: 12x=48+1012x = 48 + 10 12x=5812x = 58 x=5812=2964.83x = \frac{58}{12} = \frac{29}{6} \approx 4.83

5. Solve: 4(x+2)=26x4(x + 2) = 2 - 6x

Expand the left side: 4x+8=26x4x + 8 = 2 - 6x

Rearrange to isolate xx: 4x+6x=284x + 6x = 2 - 8 10x=610x = -6 x=35=0.6x = -\frac{3}{5} = -0.6

Summary of Solutions:

  1. x=2x = 2
  2. x=3x = -3
  3. x=6x = -6
  4. x=296x = \frac{29}{6}
  5. x=0.6x = -0.6

Would you like more details on any specific equation, or do you have any questions?

Related Questions:

  1. How can we check if the solutions are correct for each equation?
  2. What are the different methods to solve linear equations?
  3. Can we solve these equations graphically? How?
  4. How does one handle equations with variables on both sides?
  5. What is the significance of checking solutions in linear equations?

Tip:

Always check your solution by substituting the value of xx back into the original equation to verify that it satisfies both sides of the equation.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Algebra

Formulas

ax + b = c
Combining like terms
Isolating the variable

Theorems

Properties of Equality
Distributive Property

Suitable Grade Level

Grades 7-9

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