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ludmilkaskok [199]
3 years ago
14

10-5x=3(x-4)-2(x+7)-------

Mathematics
2 answers:
Taya2010 [7]3 years ago
8 0

Answer:

10-5x=3\left(x-4\right)-2\left(x+7\right)

3\left(x-4\right)-2\left(x+7\right)

combine like terms:-

=3x-12-2x-14

3x-2x=x

=x-12-14

Subtract -12 -14

=x-26

10-5x=x-26

Subtract 10 from both sides:-

-5x=x-36

Now, subtract x from both sides:-

-5x-x=x-36-x

-6x=-36

Divide both sides by -6:-

\frac{-6x}{-6}=\frac{-36}{-6}

x=6

<u />

<u>OAmalOHopeO</u>

VashaNatasha [74]3 years ago
5 0

Answer:

x=6

Step-by-step explanation:

10-5x=3(x-4)-2(x+7)

Distribute

10-5x=3x-12-2x14

Combine like terms

10-5x = x-26

add 5x to each side

10-5x+5x = x+5x-26

10 = 6x-26

Add 26 to each side

10+26 = 6x-26+26

36 = 6x

Divide by 6

36/6 = 6x/6

6 =x

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Step-by-step explanation:

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2 years ago
What is the area of a rectangular parcel of land that is 7/8 mile by 11/2miles
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2 years ago
1. The Senior Class of Great Ridge High School and Ann Arbor High School are planning a trip to Six Flags Theme Park. Great Ridg
Zanzabum

Answer:

A)14v + 16b = 1152

10v + 13b = 925

B)Number of students in a van = 8

Number of students in each bus = 65

C) Elimination method was easier.

Step-by-step explanation:

Let v be the number of students in a van

Let b be number of students in a bus

A) We are told the first school can fill 14 vans and 16 buses with 1152 students

Thus;

14v + 16b = 1152 - - - - - (eq 1)

Also,we are told that the second school can fill 10 vans and 13 buses with 925 students.

Thus;

10v + 13b = 925 - - - - (eq 2)

B) To solve this we will use elimination method.

Multiply eq (1) by 5 and multiply eq (2) by 7 to give;

70v + 80b = 5760 - - - - eq(3)

70v + 91b = 6475 - - - - - eq(4)

Subtract eq(3) from eq(4) to give;

91b - 80b = 6475 - 5760

11b = 715

b = 715/11

b = 65

Put 65 for b in eq(3) to give;

70v + 80(65) = 5760

70v = 5760 - 80(65)

70v = 560

v = 560/70

v = 8

Number of students in a van = 8

Number of students in each bus = 65

C) Elimination method was used because in both equations, we had different digits attached and so it would have been more tedious to use substitution method or graphical method. Thus, elimination method was more easier.

7 0
3 years ago
3x - 8 = 13 + -2(x - 8)
valentinak56 [21]

Answer:

37/5 or 7.4 or 7 2/5

Step-by-step explanation:

<em>I hope this helps! Have a great day!!</em>

<em>Skye~</em>

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2 years ago
-16 + (-8)
nlexa [21]
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