jordanbrewer0910
jordanbrewer0910 jordanbrewer0910
  • 24-02-2017
  • Mathematics
contestada

If 7 is added to a number and the sum is doubled, the result is -2 less than the number. find the number?

Respuesta :

emivorreilli
emivorreilli emivorreilli
  • 24-02-2017
This can be represented by the equation:
(x+7)2=x-2.

All you have to do now is solve for x.
(x+7)2=x-2
2x+14=x-2
2x=x-16
2x-x=-16
x=-16

Therefore, the number is -16.
Answer Link

Otras preguntas

Please help! I will give 100 pts and brainliest if it is good.
4x = 16. What is the best action to use to solve And the property that justifies that action
who is the prime minister of Jamaica​
Read the sentence from “Raymond's Run.” I take my time getting to the park on May Day because the track meet is the last thing on the program. Which word in thi
I need help with this
Why does morgan freeman say the declaration was meant to be spoken rather than simply read
What are the values of t and u?
fluidity of an animal cell plasma membrane is enhanced by __________.
what is change in science??
[tex]\sf 10\times 5\times 11[/tex]