One-Step Equations
Solve. 3x + 9 = 3x+9
Infinitely many solutions
49 = -4x + 1
x = -12
To do this to a variable means you get it alone on one side of an equation.
What is isolate?
Addition and Subtraction are examples of these operations because they undo each other.
What are inverse operations?
Write an example of a "no solution" equation.
Examples:
5x + 1 = 5x + 2
3x - 7 = 3x + 9
2x + 1 = 2x + 3
The math club is selling hoagies to raise money. Find the number of $6 hoagies they must sell to raise $100.
What is 17 hoagies?
1/2x -40 = -80
x = -80
Solve.
-3x + 2x + 4 = -16
x = 20
Write a multi-step equation where x will equal 1.
Example: 2x + 1 = 3