Two Step Equations

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a two-step equation?

Back

To isolate a variable, perform the inverse operations in reverse order: first eliminate the constant term, then the coefficient of the variable.

Front

What is the first step to solve the equation 3n + 4 = 7?

Back

Subtract 4 from both sides to isolate the term with the variable: 3n = 3.

Front

What is the solution to the equation 3n + 4 = 7?

Back

n = 1.

Front

How do you solve the equation -4x + 1 = 21?

Back

First, subtract 1 from both sides to get -4x = 20, then divide by -4 to find x = -5.

Front

What does it mean to solve for a variable?

Back

To solve for a variable means to find the value of that variable that makes the equation true.

Front

What is the solution to the equation 6n + 4 = -26?

Back

n = -5.

Front

What is the second step to solve the equation 3n + 4 = 7 after isolating the variable term?

Back

Divide both sides by the coefficient of the variable.

Front

What is the solution to the equation -2a = 4?

Back

a = -2.

Front

How do you check if your solution to a two-step equation is correct?

Back

Substitute the solution back into the original equation to see if both sides are equal.