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frutty [35]
3 years ago
6

Solve. 6x – 25 = 3(4x + 9) + 14 How do I do this or like just do the steps for me?

Mathematics
2 answers:
Mashcka [7]3 years ago
5 0

Answer:

x=-11

Step-by-step explanation:

6x – 25 = 3(4x + 9) + 14

Distribute

6x – 25 = 12x +27 + 14

Combine like terms

6x – 25 = 12x +41

Subtract 6x from each side

6x -6x-25 = 12x-6x+41

-25 = 6x+41

Subtract 41 from each side

-25-41 = 6x+41-41

-66 = 6x

Divide each side by 6

-66/6= 6x/6

-11=x

rodikova [14]3 years ago
4 0

Answer:

I think it is - 11.

Step-by-step explanation:

6x - 25 = 12x + 27 + 14

6x - 12x = 25 + 27 + 14

- 6x = 52 + 14

- 6x = 66

x = - 11

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netineya [11]
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3 years ago
Rewrite x2 − 6x + 7 = 0 in the form (x − a)2 = b, where a and b are integers, to determine the a and b values.
Setler79 [48]

Answer:

Therefore values of a and b are

a=3\ and\ b = 2

Step-by-step explanation:

Rewrite x^{2}-6x+7=0 in the form

(x-a)^{2}=b

where a and b are integers,

To Find:

a = ?

b = ?

Solution:

x^{2}-6x+7=0 ..............Given

Which can be written as

x^{2}-6x=-7

(\frac{1}{2} coefficient\ of\ x)^{2}=(\frac{1}{2}\times -6)^{2}=9

Adding half coefficient of X square on both the side we get

x^{2}-6x+9=-7+9=2 ...................( 1 )

By identity we have (A - B)² =A² - 2AB + B²

Therefore,

x^{2}-6x+9=x^{2}-2\times 3\times x+3^{2}=(x-3)^{2}

Substituting in equation 1 we get

(x-3)^{2}=2

Which is in the form of

(x-a)^{2}=b

On comparing we get

a = 3 and b = 2

Therefore values of a and b are

a=3\ and\ b = 2

4 0
3 years ago
Hey can some one help me with this
Leno4ka [110]
Hello!

First you have to find the surface area of what he is painting

Finding the areas of all the rectangles he is painting

14 * 8 = 112
14 * 8 = 112
12 * 8 = 96
12 * 8 = 96
12 * 14 = 168

Add all these up

112 + 112 + 96 + 96 + 168 = 584

Divide this by the amount of area a pint of paint covers

584 / 90 = 6.4888...

He needs 7 pints of paint because he needs more than 6

Multiply this by the cost of 1 pint of pint

7 * 7.98 = 55.86

The answer is $55.86

Hope this helps!
3 0
3 years ago
Read 2 more answers
What is the volume of a sphere that has a radius of 6
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Answer:288pi

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8 0
3 years ago
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Find the value of 7u+1 given that -5u-1=4
Ganezh [65]
<h3>Given:-</h3>

⟹-5u-1=4

⟹-5u=4+1

⟹-5u=5

⟹u=\frac{5}{-5}

<h3>⟹u=-1</h3>

<h3>Substitute The Value</h3>

⟹7u+1

⟹7×(-1) +1

⟹-7+1

<h3>⟹-6</h3>
5 0
3 years ago
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