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tigry1 [53]
3 years ago
11

What is the simplified expression for the expression below?

Mathematics
2 answers:
victus00 [196]3 years ago
6 0

Answer:

<h2>-4x - 1</h2>

Step-by-step explanation:

-1(2x+3)-2(x-1)\qquad\text{use the distributive property}\\\\=(-1)(2x)+(-1)(3)+(-2)(x)+(-2)(-1)\\\\=-2x-3-2x+2\qquad\text{combine like terms}\\\\=(-2x-2x)+(-3+2)\\\\=-4x-1

melomori [17]3 years ago
5 0

Answer:

-4x-1

Step-by-step explanation:

-1(2x+3)-2(x-1)

-2x-3-2x+2

-2x-2x-3+2

-4x-3+2

-4x-1

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1. What is the value of x? Show your work to justify your answer.
Reil [10]

Answer:

x=72 and the exterior angle is 154

Step-by-step explanation:

We will call the unknown angle in the triangle y.  Angle y and the angle (2x +10) form a straight line so they make 180 degrees.

y + 2x+10 =180

Solve for y by subtracting 2x+10 from each side.

y + 2x+10 - (2x+10) =180 - (2x+10)

y = 180-2x-10

y = 170-2x


The three angles of a triangle add to 180 degrees

x+ y+ 82 = 180

x+ (170-2x)+82 = 180

Combine like terms

-x +252=180

Subtract 252 from each side

-x+252-252 = 180-252

-x = -72

Multiply each side by -1

-1*-x = -72*-1

x=72

The exterior angle is 2x+10.  Substitute x=72 into the equation.

2(72)+10

144+10

154


8 0
3 years ago
Aluminum gold is 22% aluminum; the rest is gold. If aluminum gold bar contains 55g of aluminum, how many grams of gold does it c
Katarina [22]
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7 0
3 years ago
4 x 12 = 6 x n.<br><br> 4<br> 6<br> 8<br> 12
Natali5045456 [20]

Answer:

The answer is 8

Step-by-step explanation:

Because 4x12 is 48 and so is 6x8

8 0
4 years ago
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MAXImum [283]

Answer:

P + (5-3P)+(6+4P)

Step-by-step explanation:

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6 0
2 years ago
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I am pretty sure the answer is: 1.79%
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