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Gwar [14]
3 years ago
14

-6x+6y=6 -6x+3y=-12 Solving system of equations by elimination

Mathematics
1 answer:
maks197457 [2]3 years ago
6 0
By subtracting the two equations

3y = 18

y = 6

-6x + 3(6) = -12

-6x = -30

x = 5
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grin007 [14]

Answer:

The answer is 2, 5, 7, 10, and 14.


Step-by-step explanation:

Let x be the number of rows. There is not room for more than 20 rows:

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Since all rows must be equal, when we divide 70 by x, we must get a whole number. So, we must find all divisors of 70 smaller or equal to 20 and they are: 2, 5, 7, 10, and 14.

So, the possibilities are:

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Inga [223]

Answer:

W = X in.

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5 0
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