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kompoz [17]
3 years ago
15

3(1-3x)=2(-4x+7) solve

Mathematics
2 answers:
Rudiy273 years ago
8 0

Simplify the left side.

Tap for more steps...

3−9x=2(−4x+7)

Simplify the right side.

Tap for more steps...

3−9x=−8x+14

Move all terms containing x

to the left side of the equation.

Tap for more steps...

3−x=14

Move all terms not containing x

to the right side of the equation.

Tap for more steps...

−x=11

Multiply each term in x=−11

by −1

Tap for more steps...

x=−11

Hope this helps!

ivann1987 [24]3 years ago
6 0

First you use the distributive property. So, 3 times 1 and 3 times -xx = 2 times -4x and 2 times 7. This becomes 3-9x = -8x+14.  Subtract 3 from both sides and add 8x to both sides and you get -x=11, so x=-11

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Find three consecutive integers such that the sum of the first and third is 22.
Elanso [62]

Answer:

10,11,12

Step-by-step explanation:

10+12=22

5 0
3 years ago
Solve:3x-8y=-33<br><br> solve:9x+8y=29<br><br> show work please
TiliK225 [7]

Answer:

for the first one: x = -25/3 or -8.333333

for the second one: x = 29-8y/9

Step-by-step explanation:

for the first one:

add 8 to both sides 3x=-33 + 8

simplify -33+8 to -25

divide both sides by 3

which gives you -25/3 or 8.333333

for the second one:

subtract 8y from both sides 9x=29-8y

divide both sides by 9

which gives you x= 29-8y/9

6 0
3 years ago
15 - 7 5/8 =<br><br> (Fractions)<br> (Fast please thanks!)
tatuchka [14]
In order to solve this problem, you must first make sure both fractions have the same denominator. In this instance, you have both a fraction and a whole number.
This actually makes it easier, since 15 can also be 14 8/8 which satisfies the need for the same denominator.
New expression:
14 8/8 - 7 5/8
Subtract the whole numbers
14 - 7 = 7
subtract the numerators
8 - 5 = 3
Answer is 7 3/8
3 0
4 years ago
Read 2 more answers
As your sample size grows larger, the n - 1 adjustment for the standard deviation has a:______
kumpel [21]

As your sample size grows larger, the n - 1 adjustment for the standard deviation has a smaller impact on the estimates of standard deviation.

<u>Step-by-step explanation:</u>

The average (mean) of sample's distribution seems to be the same as the distribution mean at which samples were taken. The means of mean distribution will not change. However, the standard deviations for the samples mean is the standard deviations of the primary distribution divided by square roots of the samples size.

The standard deviations of means decreases as the samples size increases. Likewise, when the samples size decreases, the standard deviations for the samples mean increases. So, there is a little impact on standard deviations estimation when sample size increases.

8 0
3 years ago
3. PLEASE ANSWER ATTACHED Parrallel lines with multiple transversals
expeople1 [14]

Answer:

Step-by-step explanation:

( 2x - 8 )° = ( x + 28 )° ⇒ x = 36

<em>m∠1</em> = <em>m∠4</em> = 180° - ( 36 + 28 )° = <em>116 </em>°

<em>m∠2</em> = 123° - 64° = <em>59</em> °

<em>m∠3</em> = <em>123 </em>°

4 0
3 years ago
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