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