Carlysuefischer
Carlysuefischer Carlysuefischer
  • 12-12-2016
  • Mathematics
contestada

7=6x-11, -2x-3y=-7
What's the answer?

Respuesta :

MrQuizzical
MrQuizzical MrQuizzical
  • 12-12-2016
Solve x for the first equation and then solve the second equation.

7=6x-11 ---> add 11 to each side
7+11=6x-11+11
18=6x 
---> divide by 6
3=x

-2x-3y=-7 
---> substitute 3 for x
-2(3)-3y=-7 
---> multiply -2 and 3
-6-3y=-7 
---> add 6 to each side
-6-3y+6=-7+6
-3y=-1 ---> divide by -3
y=
[tex] \frac{1}{3} [/tex]

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