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

help me label the respiratory system
The nation of taiwanmongoliajapankorea is divided in half at the 38th parallel.
Six times a number minus five is less than twice the number plus Ten
Which question is being asked in this story problem?    Gunther has a collection of stamps and butterflies. He has a total of 80 stamps and butterflies combined
How does one pay off a 30 year mortgage in 3 years?
Why were the windows nailed shut during the constitution???
You made a few adjustments to your spending habits and you have now decided to budget $85 per paycheck (every 2 weeks) towards the purchase of your car. If you
The nurse's morning assessment of a client who has a history of heart failure reveals the presence of 2 pitting edema in the client's ankles and feet bilaterall
PLEASE HELPP ASAP!!!! During the process of a subduction, the older oceanic crust is pulled by gravity down beneath the ______ and back into the _____ . the ch
please help me workin please