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08-08-2015
Mathematics

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if 7 is added to twice a number and this sum is multiplied by 2, the result the same as if the number is multiplied by -8 and 2 is added to product, what is the number?

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08-08-2015

x - the number

[tex]2(2x+7)=-8x+2 \\ 4x+14=-8x+2 \\ 4x+8x=2-14 \\ 12x=-12 \\ x=\frac{-12}{12} \\ x=-1[/tex]

The number is -1.

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