Math

posted by .

what is an example of a math expression?


Can you solve for a variable in an expression? Explain. Can you solve for a variable in an equation?

  • Math -

    x + y is an expression. So is sqrt x or y^3. it is anything that tells you how to compute a number when you are given the values of certain variables.

    You cannot solve for a variable with just an expression.

    If you have an equation with one variable, there will usually be certain values of the variable for which a solution exists.

  • Math -

    An example of a math expression is: 2x+3x-4

    No, you can't solve for a variable in an expression. Still, you can simplify it. For example: <2x + 3> is an expression , it does not prompt you for an answer because it is not a "complete" thought. Since it is not a complete thought, let alone a question, we cannot solve for anything.

    Yes, you can solve for a variable in an equation. For example: 2x + 3 = 7, is a sentence (in math it is called an equation) and is a complete thought that is prompting you to answer the question: "What is x?" Now we can solve for the variable because we have been given a "complete" thought.
    2x + 3 = 7
    2x = 4
    x = 2

    Hope this helped you =)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. MAth

    What is the difference between an equation and an expression?
  2. math

    What is the difference between an equation and an expression?
  3. math (this correct)

    What is the difference between an equation and an expression?
  4. Math

    What is the difference between an equation and an expression?
  5. Algebra

    What is the difference between and equation and an expression?
  6. Algebra

    PLEASE HELP! 1. Part 1: Using the digits 4 and 10, and the variable x, write an equation and solve. Part 2: Using the digits 4 and 10, and the variable x, write an expression and simplify if neccessary. 2.Equation: 10 + 4 = x 14=x …
  7. algebra

    What is the difference between an equation and an expression?
  8. Math help.

    1. 1 • 12 numerical expression variable expression; a is the variable variable expression; there is no variable variable expression; l is the variable 2. f ÷ 7 variable expression; there is no variable numerical expression variable …
  9. Algebra

    There are 4 problems that I don't understand how to solve so, please help me. A numerical explanation with words explanation would be nice. Thank you tutors. Rewrite each equation so it is in the form ax + b = c or x + d/e = f, where …
  10. Algebra I math

    Which statement best demonstrates why the following is a non-example of a polynomial?

More Similar Questions