cicvi88
cicvi88 cicvi88
  • 16-09-2020
  • Mathematics
contestada

Three-fourths of the difference of a number and 7 is negative fifteen. The number is _______​

Respuesta :

Muscardinus Muscardinus
  • 25-09-2020

Answer:

x = -13

Step-by-step explanation:

Let the number be x. ATQ,

[tex]\dfrac{3}{4}(x-7)=-15[/tex]

The above equation shows Three-fourths of the difference of a number and 7 is negative fifteen. We need to find the number.

cross multiplying both sides,

[tex]3(x-7)=-60\\\\x-7=-20\\\\x=-20+7\\\\x=-13[/tex]

So, the number is -13.

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