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Linear equationsAlgebraMiddle schoolabout 0:22

Solve 4(x - 2) = 4x - 8: animated lesson

A narrated, step-by-step linear equations video lesson with captions. Final answer: All real numbers.

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Video with a synthetic English voice and captions. Pick another language for subtitles in that language, or open the interactive version.

Video narrated by a synthetic voice (Piper TTS, en_US-ljspeech-high voice (LJ Speech dataset, public domain)); the steps come from our maths engine and the answer was checked independently. Download MP4 (0.1 MB) · Captions (WebVTT)

Steps on screen

1. The problem
Solving an equation
$4~\left( x-2\right) = 4~ x-8$
2. Step by step
1. $4~\left( x-2\right) = 4~ x-8$
  Start with the equation
2. $0 = 0$
  Move every term to one side and simplify
3. The answer
$\text{All real numbers}$
0 = 0

Transcript

The problem. Here is the problem: 4(x minus 2) equals 4x minus 8. Solve for x.

Step by step. Start with the equation. Move every term to one side and simplify.

The answer. So the answer is All real numbers. The variable cancels and leaves a true statement, so every value of x works (an identity).

About linear equations

Solve one-variable linear equations, including ones with brackets and fractions, and check the solution.

Solve 4(x - 2) = 4x - 8: Animated Step-by-Step Lesson