Writing Equations

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents an unknown value in an equation or expression.

Front

What is the purpose of using equations in real-life situations?

Back

Equations help model and solve problems by representing relationships between quantities.

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, you perform operations to get the variable on one side of the equation and the constants on the other.

Front

What is a linear equation?

Back

A linear equation is an equation of the first degree, meaning it has no exponents greater than one and graphs as a straight line.

Front

What does the term 'perimeter' refer to?

Back

Perimeter is the total distance around a two-dimensional shape, calculated by adding the lengths of all sides.

Front

How can you represent a word problem as an equation?

Back

Identify the quantities involved, define variables, and translate the relationships described in the problem into mathematical expressions.

Front

What is the equation for the perimeter of a rectangle?

Back

The perimeter P of a rectangle is given by the formula P = 2(length + width).

Front

What does 'twice a number' mean in mathematical terms?

Back

'Twice a number' means to multiply that number by 2.