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

Question

24-07-2017
Mathematics

contestada

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

Respuesta :

Otras preguntas

our mountain regions are unique and beautiful places. We must preserve them for future generations. One of the most serlous threats to our mountains is ridgetop

Here is a list of ages (years) of children in a room: 8 , 8 , 9 , 5 , 10 , 4 , 9 State the median.

Here are the first five numbers in a sequence. 47 41 (a) Find the first negative number in the sequence. 35 29 23

Read the two excerpts. "Remembering to Never Forget: Dominican Republic's 'Parsley Massacre’” by Mark Memmott: Seventy-five years ago, thousands of Haitians wer

classify the equation 9(a-4)+3(2a+5)=7(3a-4)-6a+7

1) For the following questions, identify the incorrect emotional appeal being used in the statements.“I have this fan in my house,” said spokesman and NFL quart

Why do you need to combust benzoic acid before testing the "unknown" sample you are interested in? Why do you need to combust more than one sample of the "unkno

Find out the meanings of the following words with the help of your teacher. invaluable scan skim assimilate repertoire

A small sphere of mass 10 kg is released from rest at a height of 15.0 m above the ground level. The sphere experiences a constant resistive force (due to air r

Need help with this geometry question

JonHenderson55 JonHenderson55 · Answer 1 · 2017-07-24T07:18:27+02:00

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 answer:

Start with "14" ;

Add "5" :   "14 + 5 = 19 " .
______________________
then multiply by "7" : "19 * 7"
__________________________
and the result is: 133 ?
__________________________
   19 * 7 = ? 133 ? Yes!
__________________________