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Mathematics 13 Online
OpenStudy (anonymous):

six times a number decreased by twice the same number

jimthompson5910 (jim_thompson5910):

six times a number translates to what?

OpenStudy (anonymous):

that's the question

jimthompson5910 (jim_thompson5910):

well let's say x was some unknown number, then "six times a number" would be 6 times x = 6 * x = 6x

jimthompson5910 (jim_thompson5910):

see how I'm getting this?

OpenStudy (anonymous):

ok,it also says to translate the phrase into a mathematical expression and then simplify

jimthompson5910 (jim_thompson5910):

so what does "twice the same number" translate to

OpenStudy (anonymous):

6 times 2 would be 12

jimthompson5910 (jim_thompson5910):

well at the moment, the number is unknown

jimthompson5910 (jim_thompson5910):

so let's call it x

jimthompson5910 (jim_thompson5910):

"twice the same number" would be 2*x or just 2x

jimthompson5910 (jim_thompson5910):

six times a number ---> 6x twice the same number ----> 2x

OpenStudy (anonymous):

yes i see, so with your numbers it would be 6x-2x

jimthompson5910 (jim_thompson5910):

yes and that simplifies to what

OpenStudy (anonymous):

4x

jimthompson5910 (jim_thompson5910):

perfect

jimthompson5910 (jim_thompson5910):

six times a number decreased by twice the same number translates to 6x - 2x that simplifies to 4x

OpenStudy (anonymous):

it would be negative right

jimthompson5910 (jim_thompson5910):

no it's 4x

jimthompson5910 (jim_thompson5910):

not -4x

OpenStudy (anonymous):

ok

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