bamlakaklilu bamlakaklilu

10-11-2016
Mathematics

contestada

-3x+3y=3
-5x+y=13
Solve for substitution

Respuesta :

intelplayz intelplayz

11-11-2016

Take -5x + y =13 and rearrange for y:
y=13+5x

Substitute into other equation for y:
-3x+3(13+5x)=3

Multiply out brackets:
-3x+39+15x=3

Simplify:
12x+39=3

Rearrange for x:
12x=-36
x=-3

Substitute back into y=13+5x:
y=13+5(-3)
y=13-15
y=-2

Answer Link

Otras preguntas

In a client with Guillain–Barré syndrome, the health-care provider has found that the possibility of performing plasmapheresis is low. Which other alternative t

An educational institution decides to create digital promotional content that consists of an episodic series of audio, video, and PDF files for its students. Th

Write two subtraction equations that are equivalent to 5 + 12 = 17.

The two major divisions of the nervous system are the central and the ________nervous systems: (2 points) autonomic sympathetic parasympathetic peripheral somat

America changes through time of. And cooperation.

An example of the ____ effect is when BMW gained in-depth information about visitors to a popular Chinese social media site, and used that information to determ

Which of the following words best identifies the speakers tone? A. Accusatory B. Angered C. Conceited D. Indignant

Find the volume 1/2 x 1/2 x1/2

what is the relationship between the values of the 3 in 72.83 and the 3 in 27.38?

1. Jennifer wants to pick up a heavy box. The box weighs 22 pounds which is a gravity force down of 100 Newtons. How much force does Jennifer need to use to lif