23-09-2016
Mathematics

contestada

Solve 2|x|-1=3 and give the final answers that would make it the equations true

Respuesta :

apologiabiology apologiabiology

23-09-2016

remember
|x| makes x positive

so if ou have
|x|=y
assume
x=y and -x=y

so

2|x|-1=3
add 1 to both sides
2|x|=4
divide both sides by 2
|x|=2
assume
x=2
-x=2

so therefor
x=-2 and/or 2

Answer Link

Otras preguntas

Which of the following was not a reason that children of immigrant families had to get jobs? A. The jobs available to them did not pay very much. B. Families co

Value: 4 An individual skeletal muscle may be made up of hundreds, or even thousands, of muscle fibers bundled together and wrapped in what type of covering? O

what is the three kind of volume

Rewrite without parentheses and simplify. (2-5y)²

Find the value of p^3 - q^3 if (a) p-q=- 7 and pq=10 (b) P-9=5/7 and pq=7/3

what is equivalent to -3/2

help please <33 i’m struggling if anyone sees this please help this girl <3333

What information did Van Lew relay to Union army commanders? Check all that apply. a-how long the prisoners stayed b-where the prisoners had been c-who commande

Find m/H. 126⁰ F G m/H= (6x - 1) H (5x +17)

How can cocaine use impact a user’s appearance?