abonner2 abonner2

13-06-2020
Mathematics

contestada

the sum of a number and seven is doubled, the result is two less than
the number. Find the number.

Respuesta :

13-06-2020

Answer:

-16

Step-by-step explanation:

Let's call the number x. Double the sum of x and seven is 2(x + 7) and two less than x is x - 2. Since these are equal we can write:

2(x + 7) = x - 2

2x + 14 = x - 2

x = -16

Answer Link

Otras preguntas

An agent is highly contagious; upon introduction to a population, it spreads rapidly throughout the population. It often causes illness, but not serious illness

Radioactive decay can be described by the following equation: λ(s⁻¹) = ln (2) / T₁₂ , where s is the original amount of the substance, λ(s⁻¹) is the amount of

________ bias refers to a way of thinking that ignores or overlooks information that disagrees with people's beliefs. Hindsight Knowledge Confirmation Represent

A U.S. company holds available-for-sale debt securities, purchased for $1,000,000 and carried at $1,500,000. At the end of the current year, the company determi

A covered entity may use or disclose PHI without authorization, or documentation of a waiver or an alteration of authorization, for all of the following EXCEPT:

Write the inequality for the following graph.

Given that a= -1, b= 2 and c= -3, find the value of a+b+c

Which of the following factors contributed to the rise of the middle class during the industrial Revolution

I really want to finish this homework and I want to say what’s 9+9

How do the Minoan and Mycenaean civilizations differ from the civilizations of Mesopotamia?