Find the value of the variable: 4 - x = 2
Understand the Problem
The question is asking to determine the value of the variable 'x' in the equation provided, which is '4 - x = 2'. This requires solving for 'x' by performing algebraic manipulation.
Answer
The value of $x$ is $2$.
Answer for screen readers
The value of the variable $x$ is $2$.
Steps to Solve
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Identify the equation The equation given is $4 - x = 2$.
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Isolate the variable To solve for $x$, we need to get $x$ by itself. Start by subtracting 4 from both sides of the equation. $$ 4 - x - 4 = 2 - 4 $$ This simplifies to: $$ -x = -2 $$
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Solve for x Next, to eliminate the negative sign in front of $x$, multiply both sides of the equation by -1: $$ x = 2 $$
The value of the variable $x$ is $2$.
More Information
In algebra, isolating the variable is a fundamental skill. Here, we rearranged the equation step by step to find that $x$ equals 2, which follows from basic principles of equality.
Tips
- Not properly isolating the variable: Sometimes, students forget to subtract or add the same value on both sides, leading to incorrect conclusions.
- Skipping the negative sign: When dealing with subtraction, it’s easy to overlook the negative sign, which can result in the wrong answer.
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