Mathematics

Question

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

2 Answer

  • [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]
  • Subtract 7 from both sides
    2 . x = 86 Divide both sides by 2
    X = 43