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

what is quotient and remainder
‘‘Anyone in the developed world can publish anything anytime, and the instant it is published, it is globally available and readily findable’’ (Shirky, 2008:71)
Which country has the largest share of world exports? Select one: a. Japan b. Germany c. United States d. Saudi Arabia
The scale on a map shows that 200 miles is represented by 5 inches on a map.Which proportion can be used to find the distance on the map,x, that represents 50 m
When does new characteristics appear before?
The Cuban missile crisis of 1962 came to an end when
What is a good way to establish the credibility of online sources?
In sonnet 150 the speaker describes a powerful love for someone with no personal merits. Which lines describe this puzzling ability in the speaker's beloved to
What is the equation of a line, in general form, with a slope of -2 and a y-intercept of 8? What is the slope of a line perpendicular to the line whose equatio
what battle plan dose Cassius propose