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Kay [80]
2 years ago
8

Solve for x. - 1 = 3x - 7 Simplify your answer as much as possible. X =

Mathematics
2 answers:
Maurinko [17]2 years ago
5 0

Answer:

x=2

Step-by-step explanation:

-1=3x-7

Add both sides by 7 to isolate 3x

-1+7=3x-7+7

6=3x

Divide both sides by 3 to isolate x

6/3=3x/3

2=x

I hope this helps!

SVEN [57.7K]2 years ago
4 0

Answer:

x=2

Step-by-step explanation:

-1=3x-7

-1+7=3x

6=3x

x=<u>6</u>

<u> </u><u> </u><u> </u><u> </u>3

x=2

hope it helps.

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3 years ago
Nine less than three times a number is greater than forty
pentagon [3]
Start with an equation.
Nine less... so -9
3 times a number = 3x
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So put together is 3x-9>40
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3 years ago
A child has toy blocks that contain the numbers 1 through 80. What is the probability that the will pick up a number that is
Tju [1.3M]

Answer:

73/80

Step-by-step explanation:

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5 0
2 years ago
Part A: Sydney made $18.50 selling lemonade, by the cup, at her yard sale. She sold each cup for $0.50 and received a $3 tip fro
prisoha [69]

Answer:

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Part B: x0.75 + 3 - x0.10 = 21

Part C: The equations from Part A and Part B differ because of the cost of plastic cup.

Step-by-step explanation:

Let x represent the number of cup of lemonade sold. Therefore, we have:

Part A:

This situation can be represented by the following equation:

x0.50 + 3 = 18.50

Part B:

This situation can be represented by the following equation:

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Part C:

The equations from Part A and Part B differ because of the cost of plastic cup.

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For equation from Part B, revenue is different from profit because Daria has to incur the cost of plastic cup which $0.10 per cup of lemonade before selling her lemonade.

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3 years ago
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