Equations Review

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more 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 the first step in solving the equation 15 = m - 5?

Back

Add 5 to both sides to isolate the variable m.

Front

What is the solution to the equation x - 4 = 12?

Back

x = 16.

Front

How do you simplify the expression 3x + 2x + 3y - 7y?

Back

Combine like terms to get 5x - 4y.

Front

What is the value of n in the equation 3(n - 5) = -12?

Back

n = 1.

Front

How do you simplify the expression 7v + 2 + 12 + 2v?

Back

Combine like terms to get 9v + 14.

Front

What is a variable in an equation?

Back

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

Front

What does it mean to isolate a variable?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side by itself.

Front

What is the purpose of combining like terms?

Back

Combining like terms simplifies an expression, making it easier to work with.