dezariaspencer dezariaspencer

02-05-2018
Mathematics

contestada

solve the system using the substituion method
-4x+y=8
x-3y=9

Respuesta :

nilbert nilbert

02-05-2018

Hi there!

x - 3y = 9
x = 9 + 3y

-4x + y = 8
-4(9+3y) + y = 8
-36 - 12y + y = 8
-36 - 11y = 8
-11y = 44
-y = 4
y = -4

x - 3y = 9
x - 3(-4) = 9
x + 12 = 9
x = 21

So, your answers are y = -4 and x = 21.

Hope this helps!

Answer Link

Otras preguntas

What should we do about the minimum wage?

If EF bisects CD, CG = 11x-5, GD=13x-15, and EF=12x+2, find EF.

What is an equation for this line?

Which has a greater probability? Landing on a 5 or landing on a 3?

18. Jews, Christians, Muslims, Hindus, Taoists, Confucianists (and others) all have ancient religious ideas expressing that A. the natural world is a part of Go

Its like almost 12 pm rn and i have school tomorrow so i dunno why im still up but i just wanna know how big the world is. like in miles how long is it all the

[tex]31 \frac{1}{2} \times 1\frac{1}{4} [/tex]

In this excerpt, which indicates that the story is being told from the third-person point of view? Turner refers to himself as “I,” and the reader is able to he

The map above represents European land claims in which year? A. 1570 B. 1607 C. 1750 D. 1763

Read the excerpt from The Riddle of the Rosetta Stone. The Ptolemys kept their Greek culture, including their language, but they also respected the customs and