Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Equations that Describe Patterns

Key Questions

What is an algebraic equation?

Answer:

An equation is a statement that two expressions are equal, so we have:

$expression = expression$ $"expression = expression"$

Explanation:

An expression is a maths sentence made up of terms which can have numbers and or variables as factors.

$3 x, 3 x + 5, 2 x^{2} - 5 x + 3$ $3x," "3x+5," "2x^2-5x+3$ are all examples of expressions.

An equation is a statement that two expressions are equal, so we have:

$expression = expression$ $"expression = expression"$

An equation is solved, which means to find the value(s) of the variable(s) which makes the equation true,

$3 x - 5 = 22 \to x = 9$ $3x-5 = 22" "rarr x = 9$

$x^{2} + 4 x - 45 = 0 x = - 9 or x = 5$ $x^2 +4x -45 =0" "x = -9 or x=5$

An equation which contains two or more variables does not have a unique solution, but rather many, many solutions,

$x + y = 10$ $x+y=10$ has infinitely many solutions.

EZ as pi · 1 · Jul 18 2018
What are the words that are used to symbolize the equal sign?

Answer:

is, equals, is equal to

Explanation:

The product of $4$ $4$ and $3$ $3$ is $12$ $12$ .

The product of $4$ $4$ and $3$ $3$ equals $12$ $12$ .

The product of $4$ $4$ and $3$ $3$ is equal to $12$ $12$ .

$4 \cdot 3 = 12$ $4*3=12$

Serena D. · 1 · Apr 17 2018

Questions

Expressions, Equations, and Functions

View all chapters

Prev

Next