2 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

Solve for a: 2a + 7 = 15

Back

a = 4

Front

What is the first step to solve the equation 2a + 7 = 15?

Back

Subtract 7 from both sides to isolate the term with the variable.

Front

What is the second step to solve the equation 2a = 8?

Back

Divide both sides by 2 to solve for a.

Front

If 3x - 5 = 10, what is the value of x?

Back

x = 5.

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to get the variable alone on one side of the equation.

Front

What operation would you use to eliminate a constant from an equation?

Back

You would use subtraction.

Front

What is the solution to the equation 4b + 12 = 28?

Back

b = 4.

Front

How do you check if your solution to an equation is correct?

Back

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

Front

What is the purpose of solving equations?

Back

The purpose is to find the value of the variable that makes the equation true.