Sam1300 Sam1300
  • 02-03-2015
  • Mathematics
contestada

X+3y=5
-2x-6y=-10

Solve using elimination

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 02-03-2015
slimination
multiply first equaiton by 2
2x+6y=10
add to second equiaotn
2x-2x+6y-6y=10-10
0=0
this is true so therfor they are the same equaiton

so solve
x+3y=5
3y=-x+5
y=-1/3x+5/3

subsituter values for x and get valuse for y

if x=2 then y=1
Answer Link

Otras preguntas

If 6x −3 = −5x +7, then x =? Can someone explain this one?
How long does water evaporation take? What factors influence it?
What is a sound wave?
In how many ways can 12 one-dollar coins be shared between Josh, Frank, and Suzy if each of them receives at least 3 coins?
why did the framers give the power to congress rather than to the states?
Rmshot bought a 3.5oz chocolate bar.within 15minutes he had eaten 0.6 of the bar. How many ounces did he eat?
what is the definition of bureaucratic personality
What is twenty percent off 600 hundred pounds
What is twenty percent off 600 hundred pounds
Lauren bought 20 ounces of sliced ham. she used 3/4 of the ham to make sandwiches for her friends and 1/5 of the ham in an omelet. how many ounces of ham were l