Objective
To solve one-step equations in one variable
One-Step Equations
In the Solve It, you may have used reasoning to find the amount of money in the chest. In this lesson, you will learn to solve problems like the one above by using equations.
Essential Understanding Equivalent equations are equations that have the same solution(s). You can find the solution of a one-step equation using the properties of equality and inverse operations to write a simpler equivalent equation.
Addition Property of Equality Adding the same number to each side of an equation produces an equivalent equation.
Algebra | Example |
---|---|
For any real numbers a, b, and c, if a = b, then a + c = b + c. |
|
Subtraction Property of Equality Subtracting the same number from each side of an equation produces an equivalent equation.
Algebra | Example |
---|---|
For any real numbers a, b, and c, if a = b, then
|
x + 3 = 2 |