Two step equations with decimals

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 in solving the equation t + 5.2 = 18.1?

Back

Subtract 5.2 from both sides to isolate t.

Front

What is the solution to the equation 2z = -23.2?

Back

z = -11.6, by dividing both sides by 2.

Front

If g - 3.5 = 6.5, what is g?

Back

g = 10, by adding 3.5 to both sides.

Front

What does it mean to have a negative solution in an equation?

Back

A negative solution indicates that the value of the variable is less than zero.

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 solution to the equation a - 11.8 = 18.4?

Back

a = 30.2, by adding 11.8 to both sides.

Front

What is the second step in solving the equation d/2 = 9.25?

Back

Multiply both sides by 2 to isolate d.

Front

What is the solution to the equation 3g + 4.2 = 34.2?

Back

g = 10, by first subtracting 4.2 and then dividing by 3.