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Andreyy89
4 years ago
10

7-3x=12 solve and please show work

Mathematics
1 answer:
larisa [96]4 years ago
4 0

\text {Hello! Let's Solve this Equation!}

\text {The First Step is to Switch the Equation and the Operation:}

\text {Before: 7-3x=12}\\\text {After: -3x+7=12}

\text {The Next Step is to Subtract 7:}

\text {-3x+7-7=12-7}\\\text {-3x=5}

\text {The Final Step is to Divide -3:}

\text {3x/3=5/-3}

\text {Your Answer would be:}

\fbox {x=-5/3}

\text {Best of Luck!}

\text {-LimitedX}

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3 years ago
Which is the simplified form of n Superscript negative 6 p cubed?
evablogger [386]

Answer:

Third option. \frac{p^3}{n^{6}}

Step-by-step explanation:

For this exercise you need to remember one of the properties for exponents.

There is a property called the "Negative property of exponents" which states the following:

b^{-n}=\frac{1}{b^n}

Where b \neq0

As you can observe,  b^n is the reciprocal of b^{-n}

In this case you have the following expression given in the exercise:

n^{-6}p^3

Observe the expression. As you can notice, the base "n" has a negative exponent, which is -6.

Therefore, applying the Negative property of exponents explained at the beginning of this explanation, you can simplify the expression.

Then, the simplified form of  n^{-6p^3} is the one shown below:

n^{-6}p^3=\frac{p^3}{n^{6}}

3 0
3 years ago
Read 2 more answers
What is the measure?
Tju [1.3M]
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8 0
3 years ago
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What is the value of x? Enter your answer in the box.
Radda [10]

Answer:

x = 8

y = 6

Step-by-step explanation:

First and foremost, it's an equilateral triangle, therefore all sides and angles are equal.

Knowing that the sum of angle in a triangle is 180°, therefore each angle is 60°.

Then equating (7x+4)° to 60, we have that,

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5 0
2 years ago
A rectangle has an area of 105 square feet. If the sum of the length and the width is 26 feet, find the dimensions. Include unit
Andrei [34K]

L x W = 105

L + W = 26 so L = 26 - W

substitute L = 26 - W into L x W = 105


(26 - W) x W = 105

26W - W^2 = 105

W^2 - 26W + 105 = 0

(W - 21)(W - 5) = 0

W - 21 = 0; W = 21

W - 5 = 0; W = 5


The the dimensions of the rectangle are 5 ft and 21 ft.


Double check:

The sum of the length and the width is 26 feet: 21 + 5 = 26 feet

A rectangle has an area of 105 square feet: 21 x 5 = 105 square feet



8 0
3 years ago
Read 2 more answers
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