Q. 406 In the following exercises, solv... [FREE SOLUTION]

91影视

Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset 91影视 Explanations$ Math

2nd Edition 路 1240 pages

ISBN: 9780998625713

Chapter 2: Q. 406 (page 274)

In the following exercises, solve.
Solve the formula $3 x 鈭� y = 7$ for y鈸� when x = 鈭�2 鈸� in general

Short Answer

Expert verified

$a . Thesimplifiedvalueis y = 鈭� 13$

$b . Thegeneralformis 鈬� y = \frac{7 鈭� 3 x}{鈭� 1}$

Step by step solution

Step 1. Given information

Given information $3 x 鈭� y = 7$

We have to solve for y鈸� when x = 鈭�2 鈸� in general

Step 2. Explanation

$\begin{array}{l} Solve: 3 x 鈭� y = 7 \\ 鈬� 3 (鈭� 2) 鈭� y = 7 (Subsitiutex=-2) \\ 鈬� 鈭� 6 鈭� y = 7 (Simplify) \\ 鈬� 鈭� 6 + 6 鈭� y = 7 + 6 (Add6tobothsides0 \\ 鈬� 鈭� y = 13 (Simplify) \\ 鈬� \frac{鈭� y}{鈭� 1} = \frac{13}{鈭� 1} (Dividebothsidesby-1) \\ 鈬� y = 鈭� 13 (Simplify) \\ Thesimplifiedvalueis y = 鈭� 13 \end{array}$

Part b. step 3. Explanation

$\begin{array}{l} Ingeneral \\ 鈬� 3 x 鈭� y = 7 \\ 鈬� 3 x 鈭� 3 x 鈭� y = 7 鈭� 3 x (Subtract3xtoisolatey) \\ 鈬� 鈭� y = 7 鈭� 3 x (Simplify) \\ 鈬� \frac{鈭� y}{鈭� 1} = \frac{7 鈭� 3 x}{鈭� 1} (Dividebothsidesby-1) \\ 鈬� y = \frac{7 鈭� 3 x}{鈭� 1} (Simplify) \\ Thegeneralformis 鈬� y = \frac{7 鈭� 3 x}{鈭� 1} \end{array}$

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91影视

In the following exercises, solve.
Solve the formula $3 x 鈭� y = 7$ for y鈸� when x = 鈭�2 鈸� in general

Short Answer

Step by step solution

Step 1. Given information

Step 2. Explanation

Part b. step 3. Explanation

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91影视

In the following exercises, solve.Solve the formula 3x鈭�y=7for y鈸� when x = 鈭�2 鈸� in general

Short Answer

Step by step solution

Step 1. Given information

Step 2. Explanation

Part b. step 3. Explanation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Statistics

Decision Maths

Applied Mathematics

Probability and Statistics

Mechanics Maths

Pure Maths

Study anywhere. Anytime. Across all devices.

In the following exercises, solve.
Solve the formula $3 x 鈭� y = 7$ for y鈸� when x = 鈭�2 鈸� in general