Solve the equation. 9-y=4

Name: Problem 79, Chapter 4: Algebra 1
Uploaded: 2020-09-04T01:45:37-08:00
Duration: 14 s
Channel: Amy Jiang
Description: Solve the equation. 9-y=4

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Key Concepts

Linear Equations

Linear equations are equations that involve variables raised only to the first power and have no products or functions of the variables. They represent straight-line relationships and can often be solved by isolating the variable on one side of the equation.

Isolation of Variables

Isolation of variables is a method used in solving equations where the goal is to manipulate the equation until the unknown variable is by itself on one side. This technique simplifies the process of finding the value of the variable.

Properties of Equality

The properties of equality state that if you perform the same operation on both sides of an equation, the equality is maintained. This principle is fundamental when rearranging equations in order to isolate variables.

Inverse Operations

Inverse operations are operations that reverse the effect of another operation. In solving equations, using an inverse operation, such as subtracting or dividing by a number, is essential to undo operations affecting the variable and reach a simpler form of the equation.

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