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 inverse operations in the reverse order of operations.

Front

What is the first step to solve the equation (a + 3)/7 = 3?

Back

Multiply both sides by 7 to eliminate the fraction.

Front

Solve for a: (a + 3)/7 = 3.

Back

a = 18.

Front

What is the first step to solve the equation 26 = 5a + 1?

Back

Subtract 1 from both sides to isolate the term with the variable.

Front

Solve for a: 26 = 5a + 1.

Back

a = 5.

Front

What is the first step to solve the equation 3 + (1/4)a = 31?

Back

Subtract 3 from both sides to isolate the term with the variable.

Front

Solve for a: 3 + (1/4)a = 31.

Back

a = 112.

Front

What is the first step to solve the equation -3a + 8 = 14?

Back

Subtract 8 from both sides to isolate the term with the variable.

Front

Solve for a: -3a + 8 = 14.

Back

a = -2.