3 years ago

PLEASE HELP RIGHT NOW :(

Mathematics

1 answer:

fgiga [73]3 years ago

7 0

Answer: C. and F.

Step-by-step explanation:

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mixas84 [53]

$x2y + z = 9 \\ \\ 1. \: x + 2y + z + - 2y = 9 + - 2y \\ x + z = - 2y + 9 \\ 2. \: x + z + - z = - 2y + 9 + - z \\ x = - 2y - z + 9 \\ \\ \\ x + y - z = 5 \\ \\ 1. \: x + y - z + - y = 5 + - y \\ x - z = - y + 5 \\ 2. \: x - z + z = - y + 5 + z \\ x = - y + z + 5 \\ \\ \\ 3x - y + 2z = 12 \\ 1. \: 3x - y + 2z + y = 12 + y \\ 3x + 2z = y + 12 \\ 2. \: 3x = y - 2z + 12 \\ 3. \: \frac{3x}{3} = \frac{y - 2z + 12}{3} \\ x = \frac{1}{3} y + \frac{ - 2}{3} z + 4$

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3 years ago

What adds to negative ten and multiplies to six

fredd [130]

I see your doing trinomials. It would be prime because nothing <span>adds to negative ten and multiplies to six.</span>

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Sam found 24 seashells. Steve also found some. They found 67 seashells altogether. How many seashell did Steve found.

stepan [7]

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USPshnik [31]

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Step-by-step explanation:

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