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

This number is 0.02 more than 5 and 5 tenths

Many American businesses are expanding their operations into developing countries. These businesses are often finding that: Select one: a. environmental standar

write an equation where 45 is the product

Is 11/20 and 17/40 and 1/12 either a repeating decimal or a terminating?

Find the area of an equilateral triangle (regular 3-gon) with the given measurement in terms with a radical. 6-inch side. A = sq. in.

8x-9y+16x+12y How do I solve this equation

What is the Ka’aba? an Islamic deity a Muslim pilgrim a book of Sharia laws an ancient stone temple

give an example of addition problem in which you would and would not group the addends differently to add

which is the better buy 1 liter of soda for $1 or 1 gallon of soda for $4

What is an author s purpose in writing a biography? A. to tell about his or her own life B. to tell about his or her subject s life C. to tell about life at