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 appear in the equation.

Front

What is the first step to solve the equation 5 + 4x = 25?

Back

Subtract 5 from both sides to get 4x = 20.

Front

What is the second step to solve the equation 4x = 20?

Back

Divide both sides by 4 to find x = 5.

Front

Solve the equation: 3x - 7 = 32.

Back

x = 13.

Front

What is the solution to the equation 4y - 9 = -36?

Back

y = -4 is incorrect; the correct solution is y = -3.

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

Solve the equation: 3c + 5 = 23.

Back

c = 6.

Front

What is the first step to solve the equation -3x + 5 = -16?

Back

Subtract 5 from both sides to get -3x = -21.

Front

What is the second step to solve the equation -3x = -21?

Back

Divide both sides by -3 to find x = 7.