thgenfg2052 thgenfg2052
  • 01-11-2018
  • Mathematics
contestada

If 3 is added to a number and the sum is multiplied by 3 the result is 7 times the number decreased by 9 find the numbers

Respuesta :

tramserran
tramserran tramserran
  • 01-11-2018

Answer:   [tex]\frac{9}{2}[/tex]

Step-by-step explanation:

3(3 + x) = 7x - 9

 9 + 3x = 7x - 9     distributed 3 on the left side

      -3x   -3x    

 9       =  4x - 9

+9                +9

18       =  4x

÷4          ÷4      

  [tex]\frac{9}{2}[/tex]      =   x

Answer Link

Otras preguntas

How do you know if you are physically healthy?
what are all the numbers that round to 2.35 2.349 2.352 3.344 2.346 2.354 2.356 2.361 2.359
A THEME is written as... A sentence or statement One word O A brief summary of 5-8 sentences.
Write -3.5 as a mixed number. ​
What do you think the signers mean by a "civil body politic"?
Discuss the roles of Islam and Europe in the slave trade
How many feet? Thank you for your time.
Why does the author include a heading? Answer options with 4 options 1. to give the reader information about where this takes place 2. to give the reader backgr
An arrow has a mass of 0.08 kg and is flying 1.2 m above the ground with a speed of 32 m/s. What is the total mechanical energy of the arrow? The acceleration d
HELP PLS FIRST RIGHT ANSWER BRAINLIEST