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kirill115 [55]
3 years ago
11

Solve : 4+3x =(3x-7)+9.

Mathematics
2 answers:
lesantik [10]3 years ago
6 0
X=3
Hope this helped
dezoksy [38]3 years ago
5 0

Answer:

D.) x = 3

Step-by-step explanation:

4 + 3x = 2(3x - 7) + 9

4 + 3x = 6x - 14 + 9

3x - 6x = 9 - 14 - 4

-3x = -9

x = -(-9)/3

x = 9/3

x = 3

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2x + 3y = 23<br> -1(2x + y = 13
vivado [14]

Answer:

2x +3y= 5xy

-1(2x+y= 2xy+-1 = -3xy

3 0
3 years ago
Read 2 more answers
How to find slope when there is the y intercept and x-intercept?
natta225 [31]
First graph your x and y intercept then pick any two points on the line.
\frac{rise}{run} = \frac{y2 - y1}{x2 - x1}
that's the equation used to find your slope

Example:

(4,2) (8,6) let's say those are the points you pick from the line

so then you subtract 6-2=4 (6 is your y2 and 2 is your y1)

then subtracts 8-4=4 (8is your x2 and 4 is your x1)

then your left with
\frac{2}{4}
if you can reduce the reduce in this case you can which leaves you with
\frac{1}{2}
and that's how you find the slope
4 0
3 years ago
The function f(x) = 2x 26 represents the distance a flock of birds travels in in miles. The function g(x) = x − 1 represents the
nydimaria [60]

Speed is the ratio of distance and time. When we divide f(x) by g(x) we will get the speed of the flock that is 9 miles/hour.

<h3>What is speed?</h3>

Speed can be defined as the rate of change in the position of an object. It is given as,

Speed = \dfrac{Distance}{Time}

Given to us

Distance traveled, f(x) = 2x+26

Time, g(x) = x − 1

As we know that the ratio of distance and time is equal to the speed of the object. Since the distance traveled by the flock of birds is given also, the time needed for them to travel the distance is also given.

We need to find f divided by g of 5, which is the speed of the flock,

Speed = \dfrac{Distance}{Time} = \dfrac{f(x)}{g(x)}

Speed = \dfrac{f(x)}{g(x)}  = \dfrac{2x +26}{x-1}

Speed = \dfrac{f(5)}{g(5)}  = \dfrac{2(5) +26}{(5)-1}\\\\Speed = 9 \rm\ miles/ hour

Hence, when we divide f(x) by g(x) we will get the speed of the flock that is 9 miles/hour.

Learn more about Speed:

brainly.com/question/7359669

7 0
3 years ago
Verify the identity: (1-sinx)/cosx = cosx/(1+sinx)
Tresset [83]
Cross multiply the expression so that we can get

(1+sinx)(1-sinx) = cos^2 x

1 - sin^2 x = cos^2 x

cos^2 x + sin^2 x = 1

since

cos^2 x + sin^2 x = 1 

therefore 

1 = 1

the two expressions are identical in a trigonometric sense
4 0
3 years ago
Explain why the rearranged expression is easier to work with
Alex17521 [72]
Where is the expression?
7 0
3 years ago
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