Write and 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 are applied.

Front

What is the first step to solve the equation 6x + 7 = 331?

Back

Subtract 7 from both sides to isolate the term with the variable.

Front

What is the solution to the equation 6(y - 5) = 21?

Back

y = 8.5.

Front

What does the variable represent in the equation C = 15 + 0.20x?

Back

The variable x represents the number of minutes of airtime used.

Front

How do you write an equation for a real-world scenario?

Back

Identify the quantities involved and their relationships, then express them using variables and constants.

Front

What is the solution to the equation 2(x + 15) = -6?

Back

x = -18.

Front

What does the term 'constant' mean in an equation?

Back

A constant is a fixed value that does not change, such as numbers like 15 or 0.20.

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

What is the purpose of using parentheses in equations?

Back

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