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3 years ago

10

Find the value of x in the equation 2(x + 2) =6x.

2 answers:

ipn [44]3 years ago

7 0

Okay, this is the solution:

First you multiply the number 2 by everything contained in the bracket as shown below

2(x) + 2(2) =6x
2x + 4 = 6x

Next you group the like terms together that is, the x's by sending 2x to the other side of the = sign

4= 6x - 2x

Now that the like terms are grouped, we can now proceed to any arithmetic left ( -, +,...)

4= 4x

Finally we can find the x value by eliminating the 4 next to it through division as follows

4/4 = 4x/4

When the cancellation is done we will have our answer

x = 1/1
x = 1

Vinil7 [7]3 years ago

4 0

2 (x+2) =6x
2x +4=6x
2x = 6x -4
2x -6x =-4
- 4x = -4
x = -4/-4
Thus, x=1

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Reptile [31]

Plug each x-value into the equation to get the y-value:

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8 0

2 years ago

Use Order of Operations to simplify the following:

allochka39001 [22]

Answer:

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3 years ago

What is measure of angle A?

Goryan [66]

Answer:

$A=53.13\°$

Step-by-step explanation:

The figure shows a right triangle.

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$\alpha=arctan(\frac{opposite}{adjacent})$

Identify the angle $\alpha$ , the opposite side and the adjacent side:

$\alpha=A\\opposite=4cm\\adjacent=3cm$

Substitute into $\alpha=arctan(\frac{opposite}{adjacent})$ .

The measure of the angle A is:

$A=arctan(\frac{4}{3})\\\\A=53.130\°$

Rounded to the nerarest hundreth:

$A=53.13\°$

4 0

3 years ago

An airplane is flying from New York City to Los Angeles the distance it travels in Miles D is related to the time in seconds T b

tatiyna

Answer:

It takes 85 seconds to go 12.75 miles

Step-by-step explanation:

We are given

An airplane is flying from New York City to Los Angeles

the distance it travels in Miles D is related to the time in seconds T by the equation

$d=0.15T$

we are given to find time when distance is 12.75 miles

so, we can set d=12.75

and then we can solve for T

$12.75=0.15T$

We can divide both sides by 0.15

$T=\frac{12.75}{0.15}$

$T=85$

So,

It takes 85 seconds to go 12.75 miles

6 0

3 years ago

6 × 3 − (4 × 3) + 16 ÷ 4 = 11

rjkz [21]

Answer:

2

Step-by-step explanation:

6x3 = 18

4x3 = 12

18 - 12 = 6

16 / 4 = 4

6 - 4 = 2

4 0

3 years ago