elahsamanrique elahsamanrique

23-04-2020
Mathematics

contestada

(08.03)
Solve the system of equations and choose the correct answer from the list of options. (4 points)
x-y=7
y = 3x + 12

Respuesta :

princedavidanicet6 princedavidanicet6

23-04-2020

Answer:

rearrange them properly to get

x-y=7

-3x+y=12

( by elimination method)

x-y = 7

-3x+y=

(x+ –3x) + (–y+y) = (7+12)

-2x+0= 19

x= -9.5

from eqn(i)

x-y=7

-9.5 - y=7

-y=16.5

y= -16.5

Answer Link

Otras preguntas

What is one of the main causes of deforestation in the Sahel? a.The rainy season is usually too brief to sustain the forests. b.Severe droughts may persist for

How many mountains in the world?

Since dogs always salivate at the sight of food, salivation in this case would be called a(n) ___________.

Although farmers planted most of the land in grain, the financial return per acre was a lot more for other crops. Which is the MOST effective substitution

PLS HELP 20 POINTSCarrie built a fort to plain in by connecting two boxes.The first box is 7 meters long,9 meters wide and 8 meters high.The second box is 3;me

An election that is part of the process from choosing presidential candidates is called

Even though stocks, securities and mutual funds are higher-risk, many people invest in them because

In the figure, what does letter "B" represent?

Name the following in the figure shown below the base or bases, the part labeled PQ and the figure itself A circle, radius, sphere B circle, diameter, cylinder

I got it wrong twice I need help