3 years ago

Twice a number plus 6 times the number is -72.

Mathematics

1 answer:

katen-ka-za [31]3 years ago

7 0

Answer:

The number is -9

Look at the attachment

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3 years ago

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Cerrena [4.2K]

Answer:

$(5y^2+2z)(5y^2-2z)$

Step-by-step explanation:

Use the difference of squares formula.

$a^2-b^2=(a+b)(a-b)$

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Answer:

1/4

Step-by-step explanation:

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1 year ago

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kolbaska11 [484]

$\bf \stackrel{\textit{product of a }\stackrel{x}{number}\textit{ and 8}}{8\cdot x}~~=~~\stackrel{\textit{104 more than 4 times that }\stackrel{x}{number}}{4\cdot x+104}\\\\\\~~~~~~~~~~~~~~~~~~~~~~8x=4x+104\\\\-------------------------------\\\\\stackrel{\textit{quotient of a }\stackrel{x}{number}\textit{ and 6}}{\cfrac{x}{6}}~~=~~\stackrel{\textit{15 less than a }\stackrel{x}{number}}{x-15}~~\implies \cfrac{x}{6}=x-15$

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3 years ago

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