Solving 2 Step Equations

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to isolate the variable and solve for its value.

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, perform inverse operations to both sides of the equation until the variable is alone on one side.

Front

What is the first step to solve the equation x - 62 = 123?

Back

Add 62 to both sides of the equation.

Front

Write the equation for: 331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students were in each bus?

Back

331 = 6x + 7

Front

If you bought a $5 magazine and four erasers for a total of $25, what is the equation to find the cost of each eraser?

Back

5 + 4x = 25

Front

Solve the equation: -3x + 5 = -16. What is the value of x?

Back

x = 7

Front

Write an equation for: Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

Back

7x + 10 = 24

Front

What is the inverse operation of addition?

Back

Subtraction is the inverse operation of addition.

Front

What is the inverse operation of multiplication?

Back

Division is the inverse operation of multiplication.

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.