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Chapter 3: Q23. (page 202)

Solve each equation.

0=21+3x

Short Answer

Expert verified

The required solution is represented byx=鈭�7.

Step by step solution

01

Step 1. Determine the method which can be used to determine the required solution.

The equation that represents the value of x will represent the required solution.

02

Step 2. Determine the value of x.

Perform subtraction of 21 on both sides of the provided equation.

鈭�21=21+3x鈭�21鈭�21=3x

Perform division of 3 on both sides of the equation.

鈭�213=3x3鈭�7=xx=鈭�7

03

Step 3. Write the conclusion.

The obtained equationx=鈭�7 is the required solution.

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Most popular questions from this chapter

Graph each equation.

y=x

Solve each equation for y.

5x鈭�2y=12

The table shows the cost of picking your own strawberries at a farm.

Number of Pounds
1234
Total Cost ($)
1.252.503.755.00

a. Graph the data.

b. Write an equation in function notation to describe this relationship.

c. How much would it cost to pick 6 pounds of strawberries?

The number of people who watch a singing competition can be given by p=0.15v, where prepresents the number of people in millions who saw the show and vis the number of potential viewers in millions.

a. Make a table of values for the points v,p.

b. Graph the equation.

c. Use the graph to estimate the number of people who saw the show if there are 14 million potential viewers.

d. Explain why it would not make sense forvto be a negative number.

Graph each equation.

y=鈭�2x
See all solutions

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