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2 years ago

3x -5 =7 the solution for X is?

Mathematics

2 answers:

BabaBlast [244]2 years ago

7 0

Answer:

x = 4

Step-by-step explanation:

[ changing sides, changes addition to subtraction and subtraction to addition] [ multiplication changes to division and division changes to multiplication]

3x -5 =7

3x = 7 + 5

3x = 12

x = 12/3

x = 4

s2008m [1.1K]2 years ago

5 0

Answer:

x=4

Step-by-step explanation:

3x-5 = 7

Add 5 to each side

3x-5+5 = 7+5

3x = 12

Divide each side by 3

3x/3 = 12/3

x = 4

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Yuki888 [10]

Step-by-step explanation:

In the first part, he was travelling with twice the speed, or Vs, for distance

48 - d, for 2 hours.

speed = distance/time

distance = speed * time

First part :

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Second part:

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⇒d = 2V

Substitute 2s for d in equation 1.

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3 years ago

6. A surveyor walks the perimeter of a piece of government land. He notes that the area of the land

Vlada [557]

Answer:

A) l = w + 900

B) l * w = 4,000,000

B) l = 4,000,000 / w putting this into A)

A) 4,000,000 / w = w + 900

A) 4,000,000 = w^2 +900 w

A) w^2 +900 w - 4,000,000

Solving by quadratic formula

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Double-Check

1,600 * 2,500 = 4,000,000

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Step-by-step explanation:

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3 years ago

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Andre45 [30]

Answer:

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B)8050

Step-by-step explanation:

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2 years ago

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2 years ago

Read 2 more answers

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Anika [276]

Answer:

0.1 for each case

Step-by-step explanation:

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3 years ago

3x -5 =7 the solution for X is?​

3x -5 =7 the solution for X is?