Math Problem Statement

Solve the equation 4x+2y=28 for y to show that it is equivalent to y=14-2x.

Solution

To solve the equation 4x+2y=284x + 2y = 28 for yy and show that it is equivalent to y=142xy = 14 - 2x, let's proceed with isolating yy step-by-step:

  1. Start with the original equation: 4x+2y=284x + 2y = 28

  2. Subtract 4x4x from both sides to move the xx-term to the right: 2y=284x2y = 28 - 4x

  3. Divide every term by 2 to isolate yy: y=2824x2y = \frac{28}{2} - \frac{4x}{2} y=142xy = 14 - 2x

This shows that the equation 4x+2y=284x + 2y = 28 is indeed equivalent to y=142xy = 14 - 2x.

Would you like further explanation, or do you have any questions?

Here are five related questions:

  1. How would you solve for xx in the equation 4x+2y=284x + 2y = 28?
  2. What would the graph of y=142xy = 14 - 2x look like?
  3. How can you find the x- and y-intercepts of 4x+2y=284x + 2y = 28?
  4. What happens to the value of yy as xx increases in y=142xy = 14 - 2x?
  5. Can we rewrite y=142xy = 14 - 2x in terms of another variable if given additional equations?

Tip: Solving for a specific variable involves isolating that variable by applying inverse operations to both sides of the equation.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Solving for a Variable

Formulas

Isolating variables in linear equations: ax + by = c

Theorems

Properties of equality

Suitable Grade Level

Grades 8-10