anthonywitherspoon52 anthonywitherspoon52

25-03-2020
Mathematics

contestada

What is the solution to the following system of equations?
[9x - 7y = 22]
[x + 3y= -24

A. x = 4, y = 2
B. x = 3, y = -9
C. x= 0, y= -8
D. x= -3, y = -7

Respuesta :

miljanamilovanovic12 miljanamilovanovic12

25-03-2020

Answer:

D) x=-3, y=-7

Step-by-step explanation:

9x - 7y = 22

x + 3y= -24

9x - 7y = 22

x= -24-3y

9(-24-3y)-7y=22

x= -24-3y

-216-27y-7y=22

x= -24-3y

-34y=22+216

x= -24-3y

-34y=238

x= -24-3y

y=238/(-34)

x=-24-3y

y=-7

x=-24-3*(-7)

y=-7

x=-24+21

y=-7

x=-3

(x,y)=(-3,-7)

Answer Link

Otras preguntas

Which molecules would most likely cause a liquid to have the lowest viscosity?

Mitosis results in A) two unique daughter cells. B) four unique daughter cells. C) two identical daughter cells. D) four identical daughter cells.

For a field trip for students Road in cars and the rest filled nine buses how many students were in each bus it for how to 72 students were on the trip?

In a cladogram, when does a group of organisms branch off?

95 is 50% of what number?

does 9/11 equal 27/33

Chloe is painting on a stretched canvas that has an area of 108 square inches. The length of the canvas is 12 inches. The width of the canvas is ? inches. Chloe

on a coordinate plane, the vertices of a rectangle are (-1, 1), (3, 1), (-1, -4), and (3, -4). what is the perimeter of the rectangle

What do scientists call the global wind patterns that are closest to the equator? a. Crosswinds b. Tradewinds c. Westerlies d. Easterlies

Which is greater 1/9 or 1/8