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topjm [15]
2 years ago
14

Which of these is a simplified form of the equation 7y 8 = 9 3y 2y? 7y = 6 2y = 1 12y = 17 5y = 17

Mathematics
1 answer:
Korvikt [17]2 years ago
5 0

The simplified equation of 7y + 8 = 9 + 3y + 2y is 2y = 1

<h3>How to simplify an equation?</h3>

The equation can be simplified as follows:

7y + 8 = 9 + 3y + 2y

We have to combine like terms

Hence,

7y + 8  = 9 + 3y + 2y

7y + 8 = 9 + 5y

subtract 5y from both sides

7y - 5y + 8 = 9 + 5y - 5y

2y + 8 = 9

Let's subtract 8 from both sides

2y + 8 - 8 = 9 - 8

2y = 1

Therefore, the simplified equation of 7y + 8 = 9 + 3y + 2y is 2y = 1

learn more on equation here: brainly.com/question/1354560

#SPJ1

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8x-5y=21 simultaneous linear equation<br>2x+9y=-5
olya-2409 [2.1K]

Answer:

x=2 and y=-1

Step-by-step explanation:

If two equations are given, we can solve one of the equation in terms of single variable and put it in the other equation which will further give the value of x and y.

For the given equations:

8x-5y=21              Equation:1

2x+9y=-5             Equation:2

Solving equation multiply equation 2 with 4 on both the sides

8x+36y=-20        Equation 3

Subtracting Equation:3 from Equation:1

8x-5y-(8x+36y)=21-(-20)\\8x-5y-8x-36y=21+20\\-41y=41\\y=-1

Putting value of 'y' in Equation:2 which will give the value of x

2x+9y=-5\\2x+9(-1)=-5\\2x-9=-5\\2x=4\\x=2

8 0
3 years ago
Bought a board game for $30. The board game is now worth $55. Calculate the percent change in the game's value.
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Mirri is traveling in a group of 8 cat warriors. Each cat needs 4 liters of milk per day to maintain good morale. Mirri has a su
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Answer:

Step-by-step explanation:

Let d represent the total number of days that the milk will last.

The total number of cat warriors travelling together is 8. Each cat needs 4 liters of milk per day to maintain good morale. This means that the 8 cat warriors would need

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96 + 8 = 104 liters

Therefore

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3 0
3 years ago
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