112k views
3 votes
2x+5=12
What is x in this question?

1 Answer

5 votes

Final answer:

The value of x in the equation 2x+5=12 is 3.5. The equation is solved by first subtracting 5 from both sides, resulting in 2x=7, and then dividing by 2 to find that x equals 3.5.

Step-by-step explanation:

To solve the equation 2x+5=12 for x, we use algebraic methods to isolate the variable x on one side of the equation. Here are the steps we'll follow:

  1. Subtract 5 from both sides of the equation to get 2x = 7.
  2. Divide both sides by 2 to solve for x, which gives us x = 3.5.

Thus, the value of x in the equation 2x+5=12 is 3.5.

Now let's address the information provided which seems to involve various other mathematical examples, although not directly related to the initial question:

  • Setting up a proportion like 1 foot/12 inches = 12 feet/x inches and cross multiplying does indeed solve for x in terms of unit conversion.
  • The information about an unknown distribution with a mean of 12 and a standard deviation of one, and a sample size of 25, refers to statistical concepts.
  • Involving quadratic equations and the quadratic formula is a method to solve for x when the equation is in the form of ax² + bx + c = 0.

However, these examples are not necessary for solving our initial simple linear equation.

User Ashburshui
by
8.3k 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