203k views
3 votes
Converting equations change each to either the “y=“ OR “x=“ 2x+y=4

User Beauty
by
8.4k points

1 Answer

5 votes

Final answer:

To convert the equation 2x + y = 4 to either y= or x= form, subtract 2x from both sides to solve for y resulting in y = 4 - 2x, or subtract y and divide by 2 to solve for x resulting in x = (4 - y)/2.

Step-by-step explanation:

Converting the equation 2x + y = 4 to the form y = mx + b or x = something is a common practice in algebra to express the equation in a manner that is ready for graphing or further manipulation.

To solve for y, we can rearrange the equation:

  1. Subtract 2x from both sides of the equation to isolate y on one side: y = 4 - 2x.
  2. The equation is now in the slope-intercept form y = mx + b, where m is the slope and b is the y-intercept. In this case, m = -2 and b = 4.

To solve for x, you follow a similar process:

  1. Subtract y from both sides: 2x = 4 - y.
  2. Divide both sides by 2 to solve for x: x = (4 - y)/2.

Both forms express the same linear relationship, where x and y vary inversely.

User Dave Griffith
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories