Question

Solve each equation. $$ 9-x=-4 $$

Name: Problem 83, Chapter 3: Beginning Algebra
Uploaded: 2020-07-17T08:23:32-08:00
Duration: 19 s
Channel: Angel Garcia Mejia
Description: Solve each equation. 9-x=-4

   Solve each equation.
$$
9-x=-4
$$

Beginning Algebra

Margaret L. Lial,… 11th Edition

Chapter 3, Problem 83

Instant Answer

Solved by Expert Angel Garcia Mejia

07/17/2020

Step 1

We can do this by adding x to both sides of the equation: $$ 9-x+x=-4+x $$ This simplifies to: $$ 9=-4+x $$ Show more…

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Solve each equation. $$ 9-x=-4 $$

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Key Concepts

Linear Equation

A linear equation is an algebraic statement that involves a variable raised only to the first power and can be graphically represented as a straight line. Solving linear equations involves finding the value of the variable that makes the equation true, typically using simple arithmetic operations.

Properties of Equality

The properties of equality state that if you perform the same arithmetic operation on both sides of an equation, the equality is preserved. This principle is fundamental for manipulating equations to isolate the variable and determine its value.

Inverse Operations

Inverse operations are used to 'undo' an operation applied to a variable. For example, if a variable is added to a number, subtracting that same number from both sides of the equation will cancel it out, allowing one to isolate the variable and solve the equation.

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