Have fun with people who are very bad at ice skating! Learn how to do two step equations.
Jack falls 1/2 of x times while he is skating.
Clara says that she fell 8 times. In total, they both fell 22 times. What is the value of x? How do you figure this out, you ask? Well, follow me...
Let's travel to a world where people stay at the beach all day and everything adds up perfectly...... (see what I did there)
Where are we? Why, we are on equation island! Today, we will solve the equation 1/2 x+8=22. Now, we know that to find x, you have to get the variable by itself. We also know that unlike terms cannot be added together. This is where we use inverse operations.
TWO STEP EQUATIONS ROCK!!!!!!!
Now, you might be thinking that this is hard, but not at all. In the equation 1/2x+8=22, you are trying to add 1/2x and 8 together. What is the opposite of adding? Subtracting!
Next, we have to use the equality property of subtraction. This means that if we subtract 8 from one side, we have to do it to the other! Now, we have 1/2 x= 14. Go to the next slide!
Next, we have to get the variable by itself. How do you get a fraction to get to a one? You multiply it by it's reciprocal. This is also called the multiplicative inverse. Once you do this, you will find that you solution is x= 28! Thanks for tuning in!
Explore Our Articles and Examples
Try Our Other Websites!
Photos for Class
– Search for School-Safe, Creative Commons Photos (It Even Cites for You!
– Easily Make and Share Great-Looking Rubrics
– Create Custom Nursery Art