Seudónimo Seudónimo
  • 01-02-2015
  • Mathematics
contestada

A number is doubled and then increased by seven. The result is ninety three. What is the origonal number

Respuesta :

ValyRemus
ValyRemus ValyRemus
  • 01-02-2015
[tex]\hbox {Let x - to be your number.}[/tex]

[tex]2x+7=93[/tex] ⇒ [tex]2x=93-7[/tex] ⇒ [tex]2x=86[/tex]

[tex]x= \frac{86}{2} [/tex] ⇒ [tex]\boxed {x=43}[/tex]
Answer Link
zinora2012 zinora2012
  • 01-02-2015
Subtract 7 from both sides
2 . x = 86 Divide both sides by 2
X = 43
Answer Link

Otras preguntas

When societies make an impact on the environment, this means that they are affecting __________. A. the natural world around them B. the behaviors of people aro
Select the two Native Americans that taught the Pilgrims to plant and hunt.SquantoPontiacSamoset Pocahontas Powhatan
Solve each equation. Give exact solutions. Then approximate each solution to the nearest hundredth, if necessary. 1). x2 = 121 2). 4x? = 20 3). 4x² + 5 = 20
explain the key differences in the views of Hobbes and Locke on the social contract.
write a diary about injured pet
PLEASE HELP I HAVE A TON OF QUESTIONS AND EVERYTIME I REDO THIS ON THE TEST IT SAYS IM WRONG
What is the magnite of the net displacement of the mouse?
why is the media an important part of our society​
Write in scientific notation: 2540 X 10​
Lee el siguiente texto y luego entresaca los adjetivos y ubícalos según su grado en el recuadro. En mi querido pueblo, la plaza de Armas siempre estaba llena de