Solving 2-step equations

Front

What is a 2-step equation?

Back

A 2-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a 2-step equation?

Back

To isolate a variable, perform the inverse operations in the reverse order of how they appear in the equation.

Front

What is the first step in solving the equation x + 5 = 13?

Back

Subtract 5 from both sides to isolate x.

Front

What is the solution to the equation 2x = 16?

Back

x = 8, because you divide both sides by 2.

Front

How do you solve the equation x - 3 = 5?

Back

Add 3 to both sides to find x.

Front

What is the solution to the equation 3x + 4 = 19?

Back

x = 5, after subtracting 4 and dividing by 3.

Front

What does it mean to check your solution in an equation?

Back

To check your solution, substitute the value back into the original equation to see if both sides are equal.

Front

What is the solution to the equation 5x - 2 = 3?

Back

x = 1, after adding 2 and dividing by 5.

Front

How do you solve the equation 4x + 1 = 9?

Back

Subtract 1 from both sides and then divide by 4.

Front

What is the solution to the equation 2x - 7 = -1?

Back

x = 3, after adding 7 and dividing by 2.