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All About Equations
Equation Facts
Two Step Equations 1
Two Step Equations 2
Real World
100
A mathematical sentence with an equal sign is ...
What is an equation
100
Define the term variable.
What is a letter that replaces an unknown number.
100
Solve.. 3x + 8 = 80
What is x = 24
100
Solve.. 1/2x - 5 = 10
What is x = 30
100
Write an equation for the following situation.. Matt earns $490 for a 40 hour week plus $15 per hour for each hour of overtime he works. This week he brought home $565. How many hours of overtime did Matt work?
What is $490 + $15h = $565
200
Name the 4 types of equations we are learning in this unit.
What is one step equations, two step equations, multi step equations, and variables on both sides equations.
200
What you do to one side of the equation ...
What is you must do to the other side.
200
Solve.. h/2 + 7 = 11
What is h = 8
200
Solve... (9 + x)/5 = 12
What is x = 51
200
Write an equation for the following situation... An electrician charges $30 per hour plus a $20 service charge. If you write a check for $120, how many hours did the electrician work?
What is $30h + $20 = $120
300
Identify this type of equation: 10 + x = 5
What is a one step equation.
300
Final answers should be written is what form?
What is the variable equals the answer. Ex: x = 4
300
3x/5 = 6
What is x = 10
300
Solve.. 2x - 3/4 = 1/4
What is x = 1/2
300
Write an equation for the following situation and SOLVE.. Amy took her money she earned to the mall to go shopping. She spent one third of her money on a pair of shoes, then sent $5.75 on lunch. When she got home, she had $10 left. How much allowance did Amy have?
What is $47.25
400
Identify this type of equation. 7x - 8 = 41
What is a two step equation.
400
Name the steps in solving a two step equation.
What is 1) Add/Subtract 2) Mult/Divide
400
Solve.. 10 + b/6 = 4
What is b = -36
400
Solve.. (-3x)/6 = 4
What is x = -8
400
Write an equation for the situation and SOLVE.. Katie decided to sell her old car for 1/4 of what she originally paid for it plus $50 title exchange fee. Katie sold the car for $3,800. What was the original price of the car?
What is $15,000.
500
Identify this type of equation. 3x + 5 = 2x - 10
What is a variable on both sides equation.
500
Give another way to write this equation, but it still be the same equation.. -2x + 5 = 13
What is 5 - 2x = 13 13 = -2x + 5 13 = 5 - 2x
500
Solve.. -3 - y/2 = 13
What is y = -8
500
Solve.. (-9x)/5 = -18
What is x = 10
500
Write an equation for the situation.. Brance is a salesman. He earns an hourly wage of $8.00 per hour, plus he receives a commission of 7% on the sales that he makes. Write an equation that would be used to determine his weekly salary, w, where is x is the number of hours worked, and y is the amount of the sales for a week.
What is w = $8.00x + .07y