berkeleystir berkeleystir

01-04-2019
Mathematics

contestada

solve the system of equations using elimination/ combinations.
-2x - y= -4
x+ 2y = 5

Respuesta :

LammettHash LammettHash

01-04-2019

If [tex]-2x-y=-4[/tex] and [tex]x+2y=5[/tex], notice that

[tex](-2x-y)+2(x+2y)=-4+2\cdot5\implies3y=6\implies y=2[/tex]

Then

[tex]x+2\cdot2=5\implies x=1[/tex]

Answer Link

Otras preguntas

which defines a circle?

The defendant in a case always has the right to say nothing that might make him look guilty.

Which societal force has joined public relations to revolutionize the way organizations and individuals communicate with key publics around the world?

Time (seconds) Wavelength (nm)0.1 20.2 2.50.3

using distance formula what is the distance between points (7,8) &(5,_4) round to the nearest tenth

PLEASE HELP!! One example of technology in the Bible is the construction of the ____ by Noah.

By 1950, how much were furniture sales bringing into North Carolina?

how many significant digits are in 0.3500

The table shows the masses of four objects Which object has a weight of about 22.5 N? Object Book Rock Box Fish Mass (kg) 1.1 2.3 4.5 the book the rock the box

What is the cost of constructing a fence 6 ft., 6 in. high around a lot measuring 90 feet by 175 feet, if the cost of erecting the fence is $1.25 per linear foo