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Mathematics 16 Online
OpenStudy (anonymous):

The sum of four times a number and 4 is twice the number. Find the number.

OpenStudy (nincompoop):

sum is addition twice means multiplied by 2

OpenStudy (anonymous):

so 8

OpenStudy (nincompoop):

4x+2x

OpenStudy (anonymous):

6

OpenStudy (anonymous):

???

OpenStudy (nincompoop):

what happened to the x?

OpenStudy (anonymous):

6x

OpenStudy (nincompoop):

it says "a number" so we dont know what that is and assigned it as x

OpenStudy (nincompoop):

atta girl... good job

OpenStudy (anonymous):

so its 6?

OpenStudy (nincompoop):

no what happened to the x?

OpenStudy (anonymous):

its 6x?

OpenStudy (nincompoop):

6 of whatever the number it was supposed to be multiplied to

OpenStudy (nincompoop):

atta girl

OpenStudy (anonymous):

so 24

OpenStudy (anonymous):

?

OpenStudy (anonymous):

@nincompoop

OpenStudy (anonymous):

Let \(n\) be the number, then \[4n+4=2n~~\Rightarrow~~2n=-4~~\Rightarrow~~n=-2\]

OpenStudy (anonymous):

so the answer -2

OpenStudy (anonymous):

@SithsAndGiggles

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

can you help me with another

OpenStudy (anonymous):

The sum of three consecutive integers is 306. Find the integers. Write the three integers in order of smallest to largest

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