Question #5508e

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Answer 1 · 2017-07-08T00:16:29

The number is #6#

Translate into mathematical terms.

Twice a number is to say #2# times a number #n# or #2n#

Increased by #8# is to say (#+8#)

Is #20# is to say #=20#

Putting these pieces together, we get an equation in which we can solve for #n# to find the number.

#2n+8=20#

#2n+cancel(8-8)=20-8#

#2n=12#

#cancel2/cancel2n=12/2#

#n=6#

The number is #6# and we can verify it by going through the problem again. Twice a number n (6) is 12 increased by 8 is 20