vic99 vic99
  • 01-03-2014
  • Mathematics
contestada

3x+y=4
2x+y=5
solve using linear combination

Respuesta :

wacko37 wacko37
  • 01-03-2014
Idk what linear combination is but you can solve this way:
3x+y=4
-2x-y=-5
x=-1
3(-1)+y=4
-3+y=4
y=7
So x=-1 and y=7
Answer Link
alextors21
alextors21 alextors21
  • 06-02-2020

Answer:

(-1,7)

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Answer Link

Otras preguntas

What number is between 9 and 12?
What did rich men wear in the 1600s?
Simplifying 16y + 4 + -1(5y + 15)
Your knee is called a hinge joint ithe is called this because it bends like the hinge on a door what are some other examples of joints in your body that work li
if 100 drops of liquid = 0.1 oz how many oz is 100 drops
In a democratic society, which of the following statements best describes how people earn a living? a People must have the same career that their parents had. b
Which are accurate descriptions of how the Christian church influenced daily life in the Middle Ages? Choose all answers that are correct. A. elected the govern
Is there a word or phrase that means someone doesn't see the obvious, and if so what is it.
if 1 is a solution to g(x)=0 what I'd the other solution
Robert is replacing sod in two square shaped areas of his backyard. One side of the first area is 7.5 feet. One side of the other area is 5.7 feet. The sod cost