211214 wu equations/functions

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 x + 9 = 21?

Back

Subtract 9 from both sides to isolate x.

Front

What is the solution for the equation 3(3x - 6) = 18?

Back

x = 4.

Front

How do you simplify the expression -4(-4d + 5)?

Back

Distribute -4 to get 16d - 20.

Front

What is the solution for the equation 8x + 9 - 7 = 18?

Back

x = 2.

Front

What is the first step to solve the equation 11 - 3x = 44?

Back

Subtract 11 from both sides.

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 and all other terms are on the other side.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, allowing you to multiply a single term by two or more terms inside a parenthesis.