If you start with a number, add 5, then multiply by 7, the result is 133. what was the original number

The original number was:  " 14 " .


 a + 5 = b ;

 b * 7 = 133 .

What is:  "a" ?

133 / 7 = 19 = b ;

a + 5 = b = 19 ;

a + 5 = 19 ;

Subtract "5" from each side of the equation;
to isolate "a" on one side of the equation; and to solve for "a" ;

    a + 5 − 5 = 19 − 5  ;

to get:

             a = 14  .

 Let us check our

Start with "14" ;

Add "5" :   "14 + 5 = 19 " .

then multiply by "7" :  "19 * 7"

and the result is: 133 ?

   19 * 7 = ? 133 ? Yes!

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