step 1 This is probably want to solve r plus 8 is equal to 12. Now in order to solve this, we need to g

Question

$r+8=12$

Name: Problem 15, Chapter 2: Beginning and Intermediate Algebra
Uploaded: 2022-02-06T23:09:53-08:00
Duration: 28 s
Channel: Christopher Stanley
Description: r+8=12

   $r+8=12$

Beginning and Intermediate Algebra

Margaret L. Lial,… 7th Edition

Chapter 2, Problem 15

Instant Answer

Solved by Expert Christopher Stanley

02/06/2022

Step 1

Step 1: We start with the equation $r + 8 = 12$. Show more…

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Key Concepts

Linear Equation

A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and a single variable. It represents a straight line when graphed on a coordinate plane and is foundational for understanding relationships between variables in algebra.

Properties of Equality

The properties of equality allow us to manipulate equations while maintaining balance. By performing the same operation on both sides of an equation, one can isolate the variable and solve for its value, ensuring that the equality remains valid.

Isolating the Variable

Isolating the variable involves rewriting the equation so that the variable appears on one side by itself. This is typically done by performing inverse operations, such as subtracting a constant, which simplifies finding the value of the unknown variable.

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