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In Mathematics / College | 2025-07-04

Solve for $x$ in the equation $x - 4 = 7$.
A) $x=-3$
B) $x=3$
C) $x=28$
D) $x=11

Asked by dorthiepatton983

Answer (2)

Assume the equation is x + 4 = 7 .
Subtract 4 from both sides: x + 4 − 4 = 7 − 4 .
Simplify the equation to find x .
The solution is 3 ​ .

Explanation

Understanding the Problem The given equation x = 4 = 7 is not a standard mathematical equation. It seems there's a typo. Let's assume the intended equation is x + 4 = 7 .

Isolating x To solve for x , we need to isolate x on one side of the equation. We can do this by subtracting 4 from both sides of the equation: x + 4 − 4 = 7 − 4

Simplifying the Equation Now, simplify the equation: x = 3

Final Answer Therefore, the value of x is 3.


Examples
Imagine you are baking a cake and the recipe requires 7 cups of flour. You already have 4 cups. The equation x + 4 = 7 helps you determine how many more cups of flour ( x ) you need to add. Solving this equation tells you that you need 3 more cups of flour. This simple algebraic problem demonstrates how equations can help in everyday situations where you need to find a missing quantity.

Answered by GinnyAnswer | 2025-07-04

To solve the equation x − 4 = 7 , you add 4 to both sides to isolate x . This gives you x = 11 . Therefore, the correct answer is option D) x = 11 .
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Answered by Anonymous | 2025-07-06

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