anonymous
  • anonymous
Solve the system using elimination. 2x+3y=6 5x-y=-19
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Lukecrayonz
  • Lukecrayonz
To eliminate one of the variables, make one of equations have equal variables just negative and positive. To do this, multiply the second equation by 3 to get -y to -3y, but you must multiply the whole equation. 15x-3y=-57 2x+3y=6
Lukecrayonz
  • Lukecrayonz
Add the equations together now! 15x+2x=17x -57+6=-51 17x=-51 x=-3
Lukecrayonz
  • Lukecrayonz
Whoops, made a mistake.

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jiteshmeghwal9
  • jiteshmeghwal9
First equal one of the variable in both of the equations |dw:1352832467734:dw|
jiteshmeghwal9
  • jiteshmeghwal9
|dw:1352832598245:dw|
jiteshmeghwal9
  • jiteshmeghwal9
@ajprincess m i right becoz i m nt ure about this
jiteshmeghwal9
  • jiteshmeghwal9
sure *
anonymous
  • anonymous
Thanks guys this really helped.
ajprincess
  • ajprincess
When u multiply the second equation by 2 u get 10x-2y=-38. Let us name that as equation (3). The resultant equation u get by multiplying the first equation by 5 is 10x+15y=30. Let us name this equation(4). Subtracting (3) from (4) (4)-(30=> 10x+15y-10x+2y=30-(-38) 17y=68 y=68/17 y=4
ajprincess
  • ajprincess
@jiteshmeghwal9 guess u forgot abt the negative sign in front of 38.
jiteshmeghwal9
  • jiteshmeghwal9
oops... yeah sorry
ajprincess
  • ajprincess
that's k.:) that happens sometimes to me too.:)
jiteshmeghwal9
  • jiteshmeghwal9
U really are a very intelligent OS user :)
ajprincess
  • ajprincess
Thanx for the compliment.:)
ajprincess
  • ajprincess
@stephcanie do u get t?
jiteshmeghwal9
  • jiteshmeghwal9
No need of thanx.... u really deserve it :)

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