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: 15 = 2a + 7

Back

a = 4

Front

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

Back

Subtract 7 from both sides of the equation.

Front

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

Back

Divide both sides by 2.

Front

What does the variable represent in an equation?

Back

The variable represents an unknown value that we are trying to find.

Front

If 2a + 7 = 15, what is the value of 2a?

Back

2a = 8

Front

What is the purpose of isolating the variable in an equation?

Back

Isolating the variable allows us to solve for its value.

Front

What operation would you use to eliminate the constant term in the equation 3x + 5 = 20?

Back

Subtract 5 from both sides.

Front

What is the solution to the equation x - 3 = 5?

Back

x = 8

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.