Solving Two Step Equations with Rational Numbers

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 -4(1 + 3x) = 68?

Back

Distribute -4 to both terms inside the parentheses: -4 - 12x = 68.

Front

What is the solution to the equation 4x + 7 = 23?

Back

x = 4.

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 does it mean to have a rational number in an equation?

Back

A rational number is any number that can be expressed as a fraction or ratio of two integers.

Front

What is the solution to the equation 50 = 28.1 + 0.15a?

Back

a = 146.

Front

What is the second step to solve the equation -4(8 + 5n) = 8?

Back

After distributing, add or subtract to isolate the term with the variable.

Front

What is the solution to the equation 3(2x + 5) = 39?

Back

x = 4.

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.