bella7098 bella7098

19-07-2020
Mathematics

contestada

(04.03 LC)
Create an equivalent system of equations using the sum of the system and the first equation.
-3x + y = 12
x + 3y = 6

Respuesta :

unicorn3125 unicorn3125

19-07-2020

Answer:

-3x + y = 12

-2x + 4y = 18

Step-by-step explanation:

first equation of new system would be the same as first one given:

-3x + y = 12

-3x+y + x+3y = -3x + x + y + 3y = -2x + 4y

12 + 6 = 18

so the second equation would be: -2x + 4y = 18

Answer Link

Otras preguntas

The keyless entry system in some cars uses a 4-digit keypad. There are 10 possible digits, and the digits can be repeated. How many different combinations are t

explain why radio waves can travel through space,but sound waves cannot.explain the behavior of sound waves and radio waves in space.

In ΔFGH, m∠F = ( x − 9 ) ∘ (x−9) ∘ , m∠G = ( 3 x + 8 ) ∘ (3x+8) ∘ , and m∠H = ( 9 x − 1 ) ∘ (9x−1) ∘ . What is the value of x?

Point N ( , 2 9) is on RS. A translation moves point N to its image, N'(6 3 , ). What is the distance, in units, between any point on RS and its image? A 10 B 4

What was the major religion of the Germanic tribes in the beginning of the middle ages?

Sally invests $300 in a lawn mowing business to buy a mower and other supplies. she charges $20 for each lawn she mows. write an equation to show the amount of

The four types of comma interrupters are ____. 1. Parenthetical expressions 2. Two or more adjectives preceding a noun 3. Appositive 4. Compound sentence 5. D

Factors leading to the Great Depression included all of these except: A. overbuying on credit B. bad foreign trade practices C. overproduction in agriculture D.

How many numbers from 1 through 200 have a 2 in the units place and are divisible by 4?

winthrop Middle School had enrollment of 1,342 and a total of 215 teachers. what was the student teacher ratio for this School write your answer as mixed num