what is the result of adding the system of equations? 2x+y=4 3x-y=6

Question

rhonda45801 rhonda45801

03-02-2019
Mathematics

contestada

what is the result of adding the system of equations? 2x+y=4 3x-y=6

Respuesta :

Otras preguntas

Why was it important for slaves to learn to read and write?

Why can't 1 be the base of an exponential equation?

(b) Alkanes in petrol burn in air. The equations represent two reactions of hexane burning in air. Reaction 1 2C6H14 + 1902-12CO2 + 14H₂O Reaction 2 2C6H14+ 130

What are three benefits of an influenza vaccination?

Which sentence uses punctuation correctly? (Look carefully!) a) To try to keep busy; Rapunzel read books; painted; played games; and cleaned. b) To try to keep

Is it ever okay for a country to push its form of government on another country? if so, what circumstances would make it okay? if not, what makes it unethical?

who wants to do truth and. d

Where did the Japanese attack in Hawaii?

Who did Italy ally with in ww2?

Why are French, Italian, Portuguese, Spanish, and Romanian sometimes referred to as “Romance languages”? A. They are languages that speak of heroism and love.

mathecoach mathecoach · Answer 1 · 2019-02-03T15:26:59+01:00

mathecoach mathecoach

03-02-2019

Answer:

2x + y = 4

3x - y = 6

I + II

2x + y + 3x - y = 4 + 6

5x = 10

x = 2

2*2 + y = 4

y = 0

Answer Link

wegnerkolmp2741o wegnerkolmp2741o · Answer 2 · 2019-02-03T20:14:26+01:00

wegnerkolmp2741o wegnerkolmp2741o

03-02-2019

Answer:

5x = 10

Yields

x=2 y=0

Step-by-step explanation:

2x+y=4 3x-y=6

We want to add these equations

2x+y=4

3x-y=6

--------------

5x = 10

If we divide by 5 on each side

5x/5 = 10/5

x =2

Now we can find y

2x+y =4

2(2) +y = 4

4+y =4

Subtract 4 from each side

4-4 +y = 4-4

y =0

Answer Link