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blondinia [14]
3 years ago
7

What is 4(x-7)=2(x+3)?

Mathematics
2 answers:
Ainat [17]3 years ago
6 0

Answer:

x = 17

Step-by-step explanation:

4(x-7)=2(x+3)\\\\4x-28=2x+6\\\\4x-28+28=2x+6+28\\\\4x=2x+34\\\\4x-2x=2x-2x+34\\\\2x=34\\\\\frac{2x=34}{2}\\\\ \boxed{x=17}

Hope this helps.

hram777 [196]3 years ago
5 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

4(x−7)=2(x+3)

Simplify both sides of the equation.

4(x−7)=2(x+3)

4x+−28=2x+6

4x−28=2x+6

Subtract 2x from both sides.

4x−28−2x=2x+6−2x

x−28=6

Add 28 to both sides.

2x−28+28=6+28

2x=34

Divide both sides by 2.

2x/2  =  34/2

x = 17

You might be interested in
Rewrite 4.4.6.4.4.6 using exponents<br>​
kondaur [170]

Answer:

4^{4}×6^{2}

Step-by-step explanation:

There is 2 of the same number 6 and there is 4 of the number 4

I hope this helps

6 0
3 years ago
Out of a sample 650 high school students, 321 take the bus to school every day. construct a 99% confidence interval for the popu
gtnhenbr [62]

A 99% confidence interval for the population mean of high school students that take the bus to school every day is b) ci=(44.34%, 54.43%)

We need to find the 99% confidence interval for the population mean of high school students that take the bus to school everyday

A confidence interval is a range of estimates for an unknown parameter. The confidence interval is calculated at the specified confidence level; the most common is the 95% confidence level, but sometimes other levels are used, such as 90% or 99%.

The confidence interval of proportions is given by:

π ± z √(π (1-π) /n)

π is the sample proportion.

z is the critical value.

n is the sample size.

For 99% confidence interval the value of z is 2.58

π = 321/650

The confidence interval is given by

=321/650 ± 2.58 √( (321/650) × [ 1 - (321/650) ] ÷ 650)

= (0.493846 ± 0.050594)

=(0.4434 , 0.5443)

=(44.34 % , 54.43 %)

Hence a 99% confidence interval for the population mean of high school students that take the bus to school every day is ci=(44.34%, 54.43%)

<u>Learn more about confidence interval:</u>

brainly.com/question/28052710

# SPJ4

8 0
2 years ago
1) 7+a=15<br><br><br><br> 2) 23=d+44<br><br><br><br> 3) 28=n-14<br><br><br><br> 4) T-22=-31
Romashka [77]
Hi, I'd be glad to help. 

1) a = 8

2) d = (-21) 

3) n = 42

4) t = (-9)
6 0
3 years ago
Read 2 more answers
A milk container capacity is one gallon. how many cups would be equal?
Elza [17]
A milk container that has the capacity of one gallon is equal to a container that has the capacity of 16 cups.
6 0
3 years ago
Select the proper for parentheses to speed up the addition for the expression 2+9+8+1
NeTakaya
(2+9)+(8+1)=
18. 9.
\. /
27
6 0
3 years ago
Read 2 more answers
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