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3 years ago

Which of the following is the value of x in the system of equations shown below?

Mathematics

1 answer:

kirill [66]3 years ago

5 0

9514 1404 393

Answer:

(4) x = 15

Step-by-step explanation:

Twice the second equation can be added to the first.

(x +2y) +2(x -y) = (37) +2(4)

3x = 45 . . . . . . . simplify

x = 15 . . . . . . . . . divide by 3

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Answer:

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3 years ago

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Answer:

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4 years ago

Helen wants to buy a dictionary that costs $7, a dinosaur book that costs $16, and a children's cookbook that costs $17. She has

Hitman42 [59]

Answer:

Helen requires 15$ more to buy the three books.

Step-by-step explanation:

We are given the following in the question:

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Cost of dinosaur book = $16

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8 0

4 years ago

9x+3y=18 whats is the equation when solved for y

lidiya [134]

Answer:

y=6-3x

Step-by-step explanation:

first subtract 9x from 9x+3y=18

-9x -9x

so you get 3y=18-9x or 3y=-9x+18 then divide both sides by 3

so you get y=6-3x hope this helps :)

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3 years ago