Math Problem Statement

what is the value of x in the equation -7=5-3x?

Solution

To solve for xx in the equation:

7=53x-7 = 5 - 3x

follow these steps:

  1. Isolate the term with xx: 75=3x-7 - 5 = -3x Simplifying the left side: 12=3x-12 = -3x

  2. Solve for xx by dividing both sides by 3-3: x=123x = \frac{-12}{-3} x=4x = 4

So, the value of xx is 4.

Would you like more details on these steps, or do you have further questions?

Here are some related questions to explore further:

  1. How would you verify the solution by substituting xx back into the equation?
  2. What if the equation had a positive coefficient with xx (e.g., 7=5+3x-7 = 5 + 3x)?
  3. How would the steps change if there were fractions in the equation?
  4. Can you create a similar equation where xx is negative?
  5. How would you solve for xx if the constant term were on the right side instead of the left?

Tip: Always check your solution by substituting it back into the original equation.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Solving for Variables

Formulas

Isolating variables in linear equations
Division to solve for unknown variables

Theorems

Basic principles of equality and operations in equations

Suitable Grade Level

Grades 6-8