HeatherLynch
HeatherLynch HeatherLynch
  • 23-02-2016
  • Mathematics
contestada

Solve the system of linear equations by elimination. x+y=3 x−y=1

Respuesta :

Аноним Аноним
  • 23-02-2016
This is easy because they y's will cancel out. I love this method it's the easiest one out of substitution, and graphing. 

So the Y's will cancel out an you will get x=2. Then you plug the 2 in for x in the first equation. so it will 2+y-3. You subtract 2 from both sides to get y=1.

So the ordered pair is(2,1)   :)
Answer Link

Otras preguntas

Could a vector ever be shorter than one of its components? Equal in length to one of its components? Explain.
The farmer's market has a total of 98 tents.  the ratio of food tents to retail tents is 9:5.a. Write a system of linear equations that represent this situation
During a soccer season, Mario made approximately 2 goal points for every 5 of his shots on goal.  What is the probability that Marion would make 2 goal points o
Allison has 6 blue pencils and 10 yellow pencils.sadie has 24 pencils that are either blue or yellow.the ratio of blue pencils to yellow pencils is the same fo
Circle 6 numbers for a total of 31.8,9,91,5,81,1,1
who comes up with ideas for laws?
Why do the track runners start at different positions on the track?
Why do the track runners start at different positions on the track?
jessie sorted the coins in her bank. she made 7 stacks of 6 dimes and 8 stacks of 5 nickels. she then found 1 dime and 1 nickel. how many dimes and nickels does
what caused people of many different religious groups to settle in the middle colonies