11-11-2018
Mathematics

contestada

if 3x+2y=14 and 2x+y=7, then x+y=

Respuesta :

MargauxStrb MargauxStrb

11-11-2018

Out of the second equation y=7-2x
Into the first equation
3x+14-4x=14
14-x=14
X=0

Now fill back into the second
Y=7
So x+y is 7

Answer Link

Otras preguntas

#25 please help! is it tan(a)=16/20. I think thats wrong but it's my best guess.

A square has a side of s . Another square is formed that has sides one-third the length of the original square . What is the perimeter of the new square

the book The Outsider question why does Dally want Ponyboy to be tough and hard like him rather than be like Johnny? Do you think Dally believes his own advic

Is 1/2 equivalent to 7/12

I need some really interesting facts about Pumice and Sandstone

multiply, (x+4)(x-4) simplify answer.

Does the surrounding air become warm or cool when vapour phase of H2O condenses? Explain

Which of the following pairs of words may be used as an example of approximate rhyme? a. Now and later b. crew and two c. Again friend d. Applause and gauze

in which direction did the black death spread during 14th century

what are the main causes of world war 1 ?