Solving One-Step Equations
Why Learn This?
You can use known information to find unknown information.
Words you need to know
Inverse Operations- operation that undo each other to get the variable alone:
Addition can undo subtraction and Subtraction can undo Addition
Multiplication can undo Division and Division can undo Multiplication
Solving Equation by Adding
Ex. q - 16 = 40 h - 37 = -42
Solving Equations By Subtracting
ex. Your friend's scooter cost $213 more than his bike. His scooter cost $288. How much is your friends bike?
Ex. 288 = 213 + s x + 34 = 212
Solving Equations by Multiplying
Ex. t / -45 = -5 x / 4 = -10
Solving Equations by Dividing
Ex. 4p = 22.68 0.2x = 4