All categories

4 years ago

Solve for .x. x-2(3-2x) = 2x +9

Mathematics

1 answer:

Zepler [3.9K]4 years ago

5 0

Answer:

Step-by-step explanation:

X-2(3-2x)=2x+9

First you distribute the -2

So it will then be x-6+4x=2x+9

Combine like terms now so the x’s first

5x-6=2x+9

Now subtract the 2x from the 5x

3x-6=9 now you need to get the 6 to the other side so add it on both sides 3x=15

Divide both sides by 3 and you get x=5

You might be interested in

PLZ HELP ME I appreciate any help, especially if you can show me how you got the answer

Arte-miy333 [17]

Answer:

Step-by-step explanation:

Since this is an indererminate form, use L'Hopital

d(sint)/dt = cos(t)

d[ln(2e^t) - 1] = (2e^t)/[2e^t - 1]

As t --> 0,

cos(0) = 1

(2e^t)/[2e^t - 1] = 2

1/2 is the limit

5 0

4 years ago

~Factorise~ : x³ + 4x with the steps

GrogVix [38]

Answer:

x (x^2+4)

Step-by-step explanation:

See the steps below:)

6 0

3 years ago

Write the area as a sum and as a product

galina1969 [7]

Answer:

0+5+20= 25 the answer is 25

3 0

3 years ago

Answer 44 and 48 only 44 and 48

joja [24]

I know the correct answers but I need you to answer my math questions first

7 0

3 years ago

An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est

MrRa [10]

Answer:

85% level of the confidence interval is

(26.337, 26.662)

Step-by-step explanation:

Explanation:-

Given the size of the sample 'n' = 295

Mean of the sample x⁻ = 26.5

The Standard deviation of the Population = 2.7

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

Critical value Z₀.₁₅ = 1.036

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

$(26.9 -1.036 \frac{2.7}{\sqrt{295} } , 26.5 + 1.036 \frac{2.7}{\sqrt{295} })$

( 26.5 - 0.1628 , 26.5+0.1628)

(26.3372,26.6628)

7 0

3 years ago