juju2024 juju2024
  • 04-01-2021
  • Mathematics
contestada

Solve the simultaneous equations:

y−2x=12
y+2x=4
x=
and y=

Respuesta :

aquarius88
aquarius88 aquarius88
  • 04-01-2021

Answer:

y = 8

x = -2

Step-by-step explanation:

(If you are cancelling the y form the equation to find x first then subtract the equation as the signs are the same or else if you are cancelling the x first then add the equations as the signs are different)

y-12x=12 l cancelled the x from the equation to

y+2x=4 find y

+ + +

_____

2y = 16

y= 16/2

y=8

8 in eqn no 1

y-2x=12 replace the y with 8 and find x

8-2x=12

8-12=2x

-4=2x

-4/2=x

-2=x

Answer Link

Otras preguntas

The ratio of Sam age to Hanks is 5 to 3. If the sum of their ages is 24, how old is Hank?
Which sentence correctly forms the plural of the letter c?   A.How many c's are in accordion?   B.How many cs'
Why did the goverment ration goods for people to buy?
What type of reaction occurs when you strike a match?
An astronaut who weighs 126lb on Earth weighs only21lb on the moon. How much would a person who weights 31lb on the moon weigh on Earth?
Who did Odysseus leave behind when he left Troy for Ithaca, and how was it destructive?
which number is 100 less than 61 tens?
What was the Islamic Golden Age?
Which sentence correctly forms the plural of the letter c?   A.How many c's are in accordion?   B.How many cs'
How is the ecological system organized?