janayplacencia9 janayplacencia9

07-05-2019
Mathematics

contestada

Solve the system of equations using addition.
4x –y = –6
5x + y = –21

What is the solution of the system?

A. (3,6)
B. (6,3)
C. (–6,–3)
D. (–3,–6)

Respuesta :

07-05-2019

4x - y = -6 ....(1)

5x + y = -21 ....(2)

(1) + (2)

9x = -27

x = -3

from (1)

4 * -3 - y = -6

we solve

y = -6

so the answer is

D ( - 3 , - 6 )

Answer Link

Otras preguntas

Find the value of X. Write your

mann somebody wanna log into my plato & help me with it ?

I need help on numbers 17&18.

43/21 as a decimal rounded to the nearest hundredth

ABC Car Share Inc. offers car sharing for a $149 yearly fee plus $14 per hour for the use of its car share. What is the total cost for a person who purchased a

I wonder how the teachers feel about this app..,

A website offers free shipping to customers who order at least $75 dollars worth of merchandise. Della is ordering 2 flashlights at $10.00 each and plans to ord

To win at LOTTO in one state, one must correctly select 5 numbers from a collection of 61 numbers (1 through 61 ). The order in which the selection is made

Look at this prism and its net. Rectangular prism with length labeled 5 meters, width labeled 7 meters, and height labeled 12 meters. Net of the same rectang

Devi bought 8 m of ribbon. She made 6 bows. She used ⅝ m of ribbon for each bow. How much ribbon did she have left