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

Who benefitted from the corrupt bargain?
why did the framers give the power to congress rather than to the states?
The square root of 617 is between which two numbers?
Prove identity tan 3x−tan 2x−tanx = tan 3xtan 2xtanx
On average Exante Express trains are 50km/hr faster than Paral passenger trains. A Paral passenger train requires 60% more time then Exante train to travel 1800
A boy jumps into a cold swimming pool and his body temperature goes down. His muscles, blood vessels, and nervous system work together to restore his body tempe
What is the biggest cause of extinction today? a. pollution b. exotic species c. global warming d. habitat loss
Rewrite the following linear equation in slope-intercept form. Write your answer with no spaces. y+2=4(x-3)
Okay so I have three tests tomorrow. Haven't even started studying for two of them (Literature and History) but I already know science. How do you all learn 40
In Latin America, what did land reform accomplish?