laelae2017 laelae2017

16-07-2017
Mathematics

contestada

What is the system of solution to y-x=-13 and -4x+3y=-51

Respuesta :

BrainIess BrainIess

16-07-2017

Equation 1 ==> y - x = -13
Equation 2 ==> -4x + 3y = -51
3(y - x) = 3(-13)
Equation 3 ==> 3y - 3x = -39

Equation 2 - 3
= (3y - 3y) + ( -4x - (-3x) ) = -51 - (-39)
-x = -12
x = 12

Substitude x into equation 1
y - 12 = -13
y = -1

Answer Link

Otras preguntas

how are fossil fuels related to climate change

Please answer this multiple choice question correctly for 30 points and brainliest!!

Shown below is a right angle triangle. Find the exact length of the side labeled y.

How did the emergence of the colonial press reflect the growing colonial

Find the surface area of a sphere with a diameter of 4 units in terms of pi

Applying certain value. What does this mean in general?

which polygons are similar??

what is the third angle of a right triangle if one of the angles measures 51.

Find the derivative of y=e^-4x

Inez has a phone card. The graph shows the number of minutes that remain on her phone card after a certain number of days. The slope of the line that represents