21rostjos 21rostjos

11-04-2017
Mathematics

contestada

X-y=3
X+2y=-6

Plz get it right

Respuesta :

apologiabiology apologiabiology

11-04-2017

x-y=3
x+2y=-6
solve for x in first
x-y=3
x=y+3
sub y+3 for x in other

(y+3)+2y=-6
y+3+2y=-6
3y+3=-6
minus 3 both sides
3y=-9
divide by 3
y=-3

sub back

x=y+3
x=-3+3
x=0

(x,y)
(0,-3)

Answer Link

Otras preguntas

Reduce ratio 49:21 to lowest form

-3x=-2 you have to solve for X

In the diagram below , DE is parallel to XY. What is the value of X?

I need help with this question

The left and right page numbers of an open book are two consecutive integers whose sum is 345.345. find these page numbers.

Slow-wave sleep _____. increases markedly at about 3 or 4 months of age is also known as rem sleep is also known as paradoxical sleep rarely occurs until 2 year

For the beam shown, find the reactions at the supports and plot the shear-foce and bending moment diagrams

please help i’m very confused and i’ve been doing this for 2 hours

Approximately 1.5 minutes of intense exercise will obtain atp mostly from which process (think sprinting):

. A solution of barium nitrate is at a concentration of 61.2 g/L. How many mg of barium are there in exactly 2 quarts?