Solving 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 the reverse order of how they are applied in the equation.

Front

What is the first step to solve the equation 9 = 2s + 1?

Back

Subtract 1 from both sides to get 8 = 2s.

Front

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

Back

Divide both sides by 2 to find s = 4.

Front

How do you solve the equation (7 + x)/2 = 14?

Back

Multiply both sides by 2 to eliminate the fraction, resulting in 7 + x = 28.

Front

What is the next step after 7 + x = 28?

Back

Subtract 7 from both sides to find x = 21.

Front

What is the solution to the equation 3c + 5 = 23?

Back

Subtract 5 from both sides to get 3c = 18, then divide by 3 to find c = 6.

Front

How do you solve the equation 4y + 1 = 13?

Back

Subtract 1 from both sides to get 4y = 12, then divide by 4 to find y = 3.

Front

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

Back

Subtract 4 from both sides to get 3n = 3, then divide by 3 to find n = 1.

Front

What is the importance of checking your solution in a two-step equation?

Back

Checking your solution ensures that the value you found satisfies the original equation.