Solve 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 -3 + 8n = -5?

Back

Add 3 to both sides of the equation to eliminate the constant term.

Front

What is the solution to the equation 3x + 1 = 10?

Back

x = 3.

Front

How do you check if your solution to a two-step equation is correct?

Back

Substitute the solution back into the original equation to see if both sides are equal.

Front

What is the second step to solve the equation 8m - 5.5 = 10.1?

Back

Add 5.5 to both sides to isolate the term with the variable.

Front

What does it mean to 'combine like terms' in an equation?

Back

Combining like terms means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power.

Front

What is the solution to the equation 12(x - 20) = -48?

Back

x = 16.

Front

What is the purpose of using parentheses in equations?

Back

Parentheses indicate which operations should be performed first according to the order of operations.

Front

How do you solve the equation (t + 9)20 = 140?

Back

Divide both sides by 20 to isolate the term with the variable.