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

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

A rescuer arrives at the side of an adult victim and suspects an opioid associated life-threatening emergency The victim is unresponsive and not breathing norma

The vertex -x^2 - 2x + 8

By whom, and in what setting, was the relationship between electricity and magnetism discovered?.

Good counselors become emotionally involved with the peers they are working with. True False

What is the best revision of sentence 4? i began my presentation by showing how a solar cell and a wire could use the sun’s rays to make a fan spin. i began by

HELP NEEDED NOW/ASAP PLS NO LINKS AND NO JOCKING. AND PLS SHOW UR WORK IF POSSIBLE what is the simplified form of the product \sqrt(3)*HELP NEEDED NOW/ASAP PLS

Which of the following inequalities matches the graph? A. The correct inequality is not listed. B. 5x+y ≥1 C. 5x+y ≤1 D. 5x-y ≥1

What is the simplest form of the expression 2x(x − 6) − 7x2 − (13x − 3)? a. 5x2 − 25x 3 b. -5x2 − 25x 3 c. -5x2 x 3 d. -5x2 − 25x − 3

carbon-14 is used to date a palm fossil that originally contained 0.24 grams of carbon-14. The half life is 5700 years. If the fossil is found to be 17,000 year

Why electromagnetic energy is renewable? Explain.