Respuesta :

Answer:

21/5 or 4.2

Step-by-step explanation:

we need to repeat the steps backward.

"increased by 2 than less than twice the number"

  1. we need to add 2 to 40 and divide by 2 . (40+2)/2 = 21.
  2. "5 times a number"

the previous result has to be divided by 5.

(21)/(5) = 21/5 =  4.2

Proof:

"5 times a number, increased by 2

less than twice the number, is 40."

2( 5( 21/5 ) ) - 2 =2( 21 ) - 2 = 42-2 = 40

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